lavfi: port decimate libmpcodecs filter
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Help options:
63   --help                   print this message
64   --list-decoders          show all available decoders
65   --list-encoders          show all available encoders
66   --list-hwaccels          show all available hardware accelerators
67   --list-demuxers          show all available demuxers
68   --list-muxers            show all available muxers
69   --list-parsers           show all available parsers
70   --list-protocols         show all available protocols
71   --list-bsfs              show all available bitstream filters
72   --list-indevs            show all available input devices
73   --list-outdevs           show all available output devices
74   --list-filters           show all available filters
75
76 Standard options:
77   --logfile=FILE           log tests and output to FILE [config.log]
78   --disable-logging        do not log configure debug information
79   --prefix=PREFIX          install in PREFIX [$prefix]
80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
81   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
82   --libdir=DIR             install libs in DIR [PREFIX/lib]
83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
84   --incdir=DIR             install includes in DIR [PREFIX/include]
85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
86
87 Licensing options:
88   --enable-gpl             allow use of GPL code, the resulting libs
89                            and binaries will be under GPL [no]
90   --enable-version3        upgrade (L)GPL to version 3 [no]
91   --enable-nonfree         allow use of nonfree code, the resulting libs
92                            and binaries will be unredistributable [no]
93
94 Configuration options:
95   --disable-static         do not build static libraries [no]
96   --enable-shared          build shared libraries [no]
97   --enable-small           optimize for size instead of speed
98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101
102 Documentation options:
103   --disable-doc            do not build documentation
104   --disable-htmlpages      do not build HTML documentation pages
105   --disable-manpages       do not build man documentation pages
106   --disable-podpages       do not build POD documentation pages
107   --disable-txtpages       do not build text documentation pages
108
109 Component options:
110   --disable-ffmpeg         disable ffmpeg build
111   --disable-ffplay         disable ffplay build
112   --disable-ffprobe        disable ffprobe build
113   --disable-ffserver       disable ffserver build
114   --disable-avdevice       disable libavdevice build
115   --disable-avcodec        disable libavcodec build
116   --disable-avformat       disable libavformat build
117   --disable-swresample     disable libswresample build
118   --disable-swscale        disable libswscale build
119   --disable-postproc       disable libpostproc build
120   --disable-avfilter       disable libavfilter build
121   --enable-avresample      enable libavresample build [no]
122   --disable-pthreads       disable pthreads [auto]
123   --disable-w32threads     disable Win32 threads [auto]
124   --disable-os2threads     disable OS/2 threads [auto]
125   --enable-x11grab         enable X11 grabbing [no]
126   --disable-network        disable network support [no]
127   --disable-dct            disable DCT code
128   --disable-dwt            disable DWT code
129   --disable-lsp            disable LSP code
130   --disable-mdct           disable MDCT code
131   --disable-rdft           disable RDFT code
132   --disable-fft            disable FFT code
133   --enable-dxva2           enable DXVA2 code
134   --enable-vaapi           enable VAAPI code [autodetect]
135   --enable-vda             enable VDA code   [autodetect]
136   --enable-vdpau           enable VDPAU code [autodetect]
137
138 Individual component options:
139   --disable-everything     disable all components listed below
140   --disable-encoder=NAME   disable encoder NAME
141   --enable-encoder=NAME    enable encoder NAME
142   --disable-encoders       disable all encoders
143   --disable-decoder=NAME   disable decoder NAME
144   --enable-decoder=NAME    enable decoder NAME
145   --disable-decoders       disable all decoders
146   --disable-hwaccel=NAME   disable hwaccel NAME
147   --enable-hwaccel=NAME    enable hwaccel NAME
148   --disable-hwaccels       disable all hwaccels
149   --disable-muxer=NAME     disable muxer NAME
150   --enable-muxer=NAME      enable muxer NAME
151   --disable-muxers         disable all muxers
152   --disable-demuxer=NAME   disable demuxer NAME
153   --enable-demuxer=NAME    enable demuxer NAME
154   --disable-demuxers       disable all demuxers
155   --enable-parser=NAME     enable parser NAME
156   --disable-parser=NAME    disable parser NAME
157   --disable-parsers        disable all parsers
158   --enable-bsf=NAME        enable bitstream filter NAME
159   --disable-bsf=NAME       disable bitstream filter NAME
160   --disable-bsfs           disable all bitstream filters
161   --enable-protocol=NAME   enable protocol NAME
162   --disable-protocol=NAME  disable protocol NAME
163   --disable-protocols      disable all protocols
164   --enable-indev=NAME      enable input device NAME
165   --disable-indev=NAME     disable input device NAME
166   --disable-indevs         disable input devices
167   --enable-outdev=NAME     enable output device NAME
168   --disable-outdev=NAME    disable output device NAME
169   --disable-outdevs        disable output devices
170   --disable-devices        disable all devices
171   --enable-filter=NAME     enable filter NAME
172   --disable-filter=NAME    disable filter NAME
173   --disable-filters        disable all filters
174
175 External library support:
176   --enable-avisynth        enable reading of AVISynth script files [no]
177   --enable-bzlib           enable bzlib [autodetect]
178   --enable-fontconfig      enable fontconfig
179   --enable-frei0r          enable frei0r video filtering
180   --enable-gnutls          enable gnutls [no]
181   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
182   --enable-libass          enable libass subtitles rendering [no]
183   --enable-libbluray       enable BluRay reading using libbluray [no]
184   --enable-libcaca         enable textual display using libcaca
185   --enable-libcelt         enable CELT decoding via libcelt [no]
186   --enable-libcdio         enable audio CD grabbing with libcdio
187   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
188                            and libraw1394 [no]
189   --enable-libfaac         enable AAC encoding via libfaac [no]
190   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
191   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
192   --enable-libfreetype     enable libfreetype [no]
193   --enable-libgsm          enable GSM de/encoding via libgsm [no]
194   --enable-libiec61883     enable iec61883 via libiec61883 [no]
195   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
196   --enable-libmodplug      enable ModPlug via libmodplug [no]
197   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
198   --enable-libnut          enable NUT (de)muxing via libnut,
199                            native (de)muxer exists [no]
200   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
201   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
202   --enable-libopencv       enable video filtering via libopencv [no]
203   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
204   --enable-libopus         enable Opus decoding via libopus [no]
205   --enable-libpulse        enable Pulseaudio input via libpulse [no]
206   --enable-librtmp         enable RTMP[E] support via librtmp [no]
207   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
208   --enable-libspeex        enable Speex de/encoding via libspeex [no]
209   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
210   --enable-libtheora       enable Theora encoding via libtheora [no]
211   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
212   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
213   --enable-libv4l2         enable libv4l2/v4l-utils [no]
214   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
215   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
216   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
217                            native implementation exists [no]
218   --enable-libvpx          enable VP8 de/encoding via libvpx [no]
219   --enable-libx264         enable H.264 encoding via x264 [no]
220   --enable-libxavs         enable AVS encoding via xavs [no]
221   --enable-libxvid         enable Xvid encoding via xvidcore,
222                            native MPEG-4/Xvid encoder exists [no]
223   --enable-openal          enable OpenAL 1.1 capture support [no]
224   --enable-openssl         enable openssl [no]
225   --enable-zlib            enable zlib [autodetect]
226
227 Advanced options (experts only):
228   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
229   --enable-cross-compile   assume a cross-compiler is used
230   --sysroot=PATH           root of cross-build tree
231   --sysinclude=PATH        location of cross-build system headers
232   --target-os=OS           compiler targets OS [$target_os]
233   --target-exec=CMD        command to run executables on target
234   --target-path=DIR        path to view of build directory on target
235   --nm=NM                  use nm tool NM [$nm_default]
236   --ar=AR                  use archive tool AR [$ar_default]
237   --as=AS                  use assembler AS [$as_default]
238   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
239   --cc=CC                  use C compiler CC [$cc_default]
240   --cxx=CXX                use C compiler CXX [$cxx_default]
241   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
242   --ld=LD                  use linker LD [$ld_default]
243   --host-cc=HOSTCC         use host C compiler HOSTCC
244   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
245   --host-ld=HOSTLD         use host linker HOSTLD
246   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
247   --host-libs=HLIBS        use libs HLIBS when linking for host
248   --host-os=OS             compiler host OS [$target_os]
249   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
250   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
251   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
252   --extra-libs=ELIBS       add ELIBS [$ELIBS]
253   --extra-version=STRING   version string suffix []
254   --optflags=OPTFLAGS      override optimization-related compiler flags
255   --build-suffix=SUFFIX    library name suffix []
256   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
257   --progs-suffix=SUFFIX    program name suffix []
258   --arch=ARCH              select architecture [$arch]
259   --cpu=CPU                select the minimum required CPU (affects
260                            instruction selection, may crash on older CPUs)
261   --enable-pic             build position-independent code
262   --enable-sram            allow use of on-chip SRAM
263   --enable-thumb           compile for Thumb instruction set
264   --disable-symver         disable symbol versioning
265   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
266   --disable-safe-bitstream-reader
267                            disable buffer boundary checking in bitreaders
268                            (faster, but may crash)
269   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
270
271 Optimization options (experts only):
272   --disable-asm            disable all assembler optimizations
273   --disable-altivec        disable AltiVec optimizations
274   --disable-amd3dnow       disable 3DNow! optimizations
275   --disable-amd3dnowext    disable 3DNow! extended optimizations
276   --disable-mmx            disable MMX optimizations
277   --disable-mmxext         disable MMXEXT optimizations
278   --disable-sse            disable SSE optimizations
279   --disable-sse2           disable SSE2 optimizations
280   --disable-sse3           disable SSE3 optimizations
281   --disable-ssse3          disable SSSE3 optimizations
282   --disable-sse4           disable SSE4 optimizations
283   --disable-sse42          disable SSE4.2 optimizations
284   --disable-avx            disable AVX optimizations
285   --disable-fma4           disable FMA4 optimizations
286   --disable-armv5te        disable armv5te optimizations
287   --disable-armv6          disable armv6 optimizations
288   --disable-armv6t2        disable armv6t2 optimizations
289   --disable-armvfp         disable ARM VFP optimizations
290   --disable-mmi            disable MMI optimizations
291   --disable-neon           disable NEON optimizations
292   --disable-vis            disable VIS optimizations
293   --disable-yasm           disable use of yasm assembler
294   --disable-mips32r2       disable MIPS32R2 optimizations
295   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
296   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
297   --disable-mipsfpu        disable floating point MIPS optimizations
298   --disable-fast-unaligned consider unaligned accesses slow
299   --postproc-version=V     build libpostproc version V.
300                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
301
302 Developer options (useful when working on FFmpeg itself):
303   --enable-coverage        build with test coverage instrumentation
304   --disable-debug          disable debugging symbols
305   --enable-debug=LEVEL     set the debug level [$debuglevel]
306   --disable-optimizations  disable compiler optimizations
307   --enable-extra-warnings  enable more compiler warnings
308   --disable-stripping      disable stripping of executables and shared libraries
309   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
310                            2 causes a slowdown at runtime.
311   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
312   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
313                            leaks and errors, using the specified valgrind binary.
314                            Cannot be combined with --target-exec
315   --samples=PATH           location of test samples for FATE, if not set use
316                            \$FATE_SAMPLES at make invocation time.
317   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
318                            should be used only for debugging purposes)
319   --enable-random          randomly enable/disable components
320   --disable-random
321   --enable-random=LIST     randomly enable/disable specific components or
322   --disable-random=LIST    component groups. LIST is a comma-separated list
323                            of NAME[:PROB] entries where NAME is a component
324                            (group) and PROB the probability associated with
325                            NAME (default 0.5).
326   --random-seed=VALUE      seed value for --enable/disable-random
327
328 NOTE: Object files are built at the place where configure is launched.
329 EOF
330   exit 0
331 }
332
333 quotes='""'
334
335 log(){
336     echo "$@" >> $logfile
337 }
338
339 log_file(){
340     log BEGIN $1
341     pr -n -t $1 >> $logfile
342     log END $1
343 }
344
345 echolog(){
346     log "$@"
347     echo "$@"
348 }
349
350 warn(){
351     log "WARNING: $*"
352     WARNINGS="${WARNINGS}WARNING: $*\n"
353 }
354
355 die(){
356     echolog "$@"
357     cat <<EOF
358
359 If you think configure made a mistake, make sure you are using the latest
360 version from Git.  If the latest version fails, report the problem to the
361 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
362 EOF
363     if disabled logging; then
364         cat <<EOF
365 Rerun configure with logging enabled (do not use --disable-logging), and
366 include the log this produces with your report.
367 EOF
368     else
369 cat <<EOF
370 Include the log file "$logfile" produced by configure as this will help
371 solving the problem.
372 EOF
373     fi
374     exit 1
375 }
376
377 # Avoid locale weirdness, besides we really just want to translate ASCII.
378 toupper(){
379     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
380 }
381
382 tolower(){
383     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
384 }
385
386 c_escape(){
387     echo "$*" | sed 's/["\\]/\\\0/g'
388 }
389
390 sh_quote(){
391     v=$(echo "$1" | sed "s/'/'\\\\''/g")
392     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
393     echo "$v"
394 }
395
396 cleanws(){
397     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
398 }
399
400 filter(){
401     pat=$1
402     shift
403     for v; do
404         eval "case $v in $pat) echo $v ;; esac"
405     done
406 }
407
408 filter_out(){
409     pat=$1
410     shift
411     for v; do
412         eval "case $v in $pat) ;; *) echo $v ;; esac"
413     done
414 }
415
416 map(){
417     m=$1
418     shift
419     for v; do eval $m; done
420 }
421
422 add_suffix(){
423     suffix=$1
424     shift
425     for v; do echo ${v}${suffix}; done
426 }
427
428 set_all(){
429     value=$1
430     shift
431     for var in $*; do
432         eval $var=$value
433     done
434 }
435
436 set_weak(){
437     value=$1
438     shift
439     for var; do
440         eval : \${$var:=$value}
441     done
442 }
443
444 set_safe(){
445     var=$1
446     shift
447     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
448 }
449
450 get_safe(){
451     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
452 }
453
454 pushvar(){
455     for var in $*; do
456         eval level=\${${var}_level:=0}
457         eval ${var}_${level}="\$$var"
458         eval ${var}_level=$(($level+1))
459     done
460 }
461
462 popvar(){
463     for var in $*; do
464         eval level=\${${var}_level:-0}
465         test $level = 0 && continue
466         eval level=$(($level-1))
467         eval $var="\${${var}_${level}}"
468         eval ${var}_level=$level
469         eval unset ${var}_${level}
470     done
471 }
472
473 enable(){
474     set_all yes $*
475 }
476
477 disable(){
478     set_all no $*
479 }
480
481 enable_weak(){
482     set_weak yes $*
483 }
484
485 disable_weak(){
486     set_weak no $*
487 }
488
489 enable_safe(){
490     for var; do
491         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
492     done
493 }
494
495 disable_safe(){
496     for var; do
497         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
498     done
499 }
500
501 do_enable_deep(){
502     for var; do
503         enabled $var && continue
504         eval sel="\$${var}_select"
505         eval sgs="\$${var}_suggest"
506         pushvar var sgs
507         enable_deep $sel
508         popvar sgs
509         enable_deep_weak $sgs
510         popvar var
511     done
512 }
513
514 enable_deep(){
515     do_enable_deep $*
516     enable $*
517 }
518
519 enable_deep_weak(){
520     do_enable_deep $*
521     enable_weak $*
522 }
523
524 enabled(){
525     test "${1#!}" = "$1" && op== || op=!=
526     eval test "x\$${1#!}" $op "xyes"
527 }
528
529 disabled(){
530     test "${1#!}" = "$1" && op== || op=!=
531     eval test "x\$${1#!}" $op "xno"
532 }
533
534 enabled_all(){
535     for opt; do
536         enabled $opt || return 1
537     done
538 }
539
540 disabled_all(){
541     for opt; do
542         disabled $opt || return 1
543     done
544 }
545
546 enabled_any(){
547     for opt; do
548         enabled $opt && return 0
549     done
550 }
551
552 disabled_any(){
553     for opt; do
554         disabled $opt && return 0
555     done
556     return 1
557 }
558
559 set_default(){
560     for opt; do
561         eval : \${$opt:=\$${opt}_default}
562     done
563 }
564
565 is_in(){
566     value=$1
567     shift
568     for var in $*; do
569         [ $var = $value ] && return 0
570     done
571     return 1
572 }
573
574 check_deps(){
575     for cfg; do
576         cfg="${cfg#!}"
577         enabled ${cfg}_checking && die "Circular dependency for $cfg."
578         disabled ${cfg}_checking && continue
579         enable ${cfg}_checking
580
581         eval dep_all="\$${cfg}_deps"
582         eval dep_any="\$${cfg}_deps_any"
583         eval dep_sel="\$${cfg}_select"
584         eval dep_sgs="\$${cfg}_suggest"
585         eval dep_ifa="\$${cfg}_if"
586         eval dep_ifn="\$${cfg}_if_any"
587
588         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
589         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
590         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
591
592         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
593         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
594         enabled_all  $dep_all || disable $cfg
595         enabled_any  $dep_any || disable $cfg
596         disabled_any $dep_sel && disable $cfg
597
598         if enabled $cfg; then
599             eval dep_extralibs="\$${cfg}_extralibs"
600             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
601             enable_deep $dep_sel
602             enable_deep_weak $dep_sgs
603         fi
604
605         disable ${cfg}_checking
606     done
607 }
608
609 print_config_h(){
610     enabled $1 && v=1 || v=0
611     echo "#define $2 $v"
612 }
613
614 print_config_mak(){
615     enabled $1 && v= || v=!
616     echo "$v$2=yes"
617 }
618
619 print_config_asm(){
620     enabled $1 && v=1 || v=0
621     echo "%define $2 $v"
622 }
623
624 print_config(){
625     pfx=$1
626     files=$2
627     shift 2
628     for cfg; do
629         ucname="$(toupper $cfg)"
630         for f in $files; do
631             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
632         done
633     done
634 }
635
636 print_enabled(){
637     test "$1" = -n && end=" " && shift || end="\n"
638     suf=$1
639     shift
640     for v; do
641         enabled $v && printf "%s$end" ${v%$suf};
642     done
643 }
644
645 append(){
646     var=$1
647     shift
648     eval "$var=\"\$$var $*\""
649 }
650
651 prepend(){
652     var=$1
653     shift
654     eval "$var=\"$* \$$var\""
655 }
656
657 add_cppflags(){
658     append CPPFLAGS "$@"
659 }
660
661 add_cflags(){
662     append CFLAGS $($cflags_filter "$@")
663 }
664
665 add_cxxflags(){
666     append CXXFLAGS $($cflags_filter "$@")
667 }
668
669 add_asflags(){
670     append ASFLAGS $($asflags_filter "$@")
671 }
672
673 add_ldflags(){
674     append LDFLAGS $($ldflags_filter "$@")
675 }
676
677 add_extralibs(){
678     prepend extralibs $($ldflags_filter "$@")
679 }
680
681 add_host_cflags(){
682     append host_cflags $($host_cflags_filter "$@")
683 }
684
685 add_host_ldflags(){
686     append host_ldflags $($host_ldflags_filter "$@")
687 }
688
689 check_cmd(){
690     log "$@"
691     "$@" >> $logfile 2>&1
692 }
693
694 cc_o(){
695     eval printf '%s\\n' $CC_O
696 }
697
698 cc_e(){
699     eval printf '%s\\n' $CC_E
700 }
701
702 check_cc(){
703     log check_cc "$@"
704     cat > $TMPC
705     log_file $TMPC
706     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
707 }
708
709 check_cxx(){
710     log check_cxx "$@"
711     cat > $TMPCPP
712     log_file $TMPCPP
713     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
714 }
715
716 check_cpp(){
717     log check_cpp "$@"
718     cat > $TMPC
719     log_file $TMPC
720     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
721 }
722
723 as_o(){
724     eval printf '%s\\n' $AS_O
725 }
726
727 check_as(){
728     log check_as "$@"
729     cat > $TMPC
730     log_file $TMPC
731     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPC
732 }
733
734 check_inline_asm(){
735     log check_inline_asm "$@"
736     name="$1"
737     code="$2"
738     shift 2
739     disable $name
740     check_as "$@" <<EOF && enable $name
741 void foo(void){ __asm__ volatile($code); }
742 EOF
743 }
744
745 check_yasm(){
746     log check_yasm "$@"
747     echo "$1" > $TMPS
748     log_file $TMPS
749     shift 1
750     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
751 }
752
753 ld_o(){
754     eval printf '%s\\n' $LD_O
755 }
756
757 check_ld(){
758     log check_ld "$@"
759     type=$1
760     shift 1
761     flags=''
762     libs=''
763     for f; do
764         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
765     done
766     check_$type $($cflags_filter $flags) || return
767     flags=$($ldflags_filter $flags)
768     libs=$($ldflags_filter $libs)
769     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
770 }
771
772 check_code(){
773     log check_code "$@"
774     check=$1
775     headers=$2
776     code=$3
777     shift 3
778     {
779         for hdr in $headers; do
780             echo "#include <$hdr>"
781         done
782         echo "int main(void) { $code; return 0; }"
783     } | check_$check "$@"
784 }
785
786 check_cppflags(){
787     log check_cppflags "$@"
788     check_cc "$@" <<EOF && append CPPFLAGS "$@"
789 int x;
790 EOF
791 }
792
793 check_cflags(){
794     log check_cflags "$@"
795     set -- $($cflags_filter "$@")
796     check_cc "$@" <<EOF && append CFLAGS "$@"
797 int x;
798 EOF
799 }
800
801 check_cxxflags(){
802     log check_cxxflags "$@"
803     set -- $($cflags_filter "$@")
804     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
805 int x;
806 EOF
807 }
808
809 test_ldflags(){
810     log test_ldflags "$@"
811     check_ld "cc" "$@" <<EOF
812 int main(void){ return 0; }
813 EOF
814 }
815
816 check_ldflags(){
817     log check_ldflags "$@"
818     test_ldflags "$@" && add_ldflags "$@"
819 }
820
821 check_header(){
822     log check_header "$@"
823     header=$1
824     shift
825     disable_safe $header
826     check_cpp "$@" <<EOF && enable_safe $header
827 #include <$header>
828 int x;
829 EOF
830 }
831
832 check_func(){
833     log check_func "$@"
834     func=$1
835     shift
836     disable $func
837     check_ld "cc" "$@" <<EOF && enable $func
838 extern int $func();
839 int main(void){ $func(); }
840 EOF
841 }
842
843 check_mathfunc(){
844     log check_mathfunc "$@"
845     func=$1
846     shift
847     disable $func
848     check_ld "cc" "$@" <<EOF && enable $func
849 #include <math.h>
850 float foo(float f) { return $func(f); }
851 int main(void){ return (int) foo; }
852 EOF
853 }
854
855 check_func_headers(){
856     log check_func_headers "$@"
857     headers=$1
858     funcs=$2
859     shift 2
860     {
861         for hdr in $headers; do
862             echo "#include <$hdr>"
863         done
864         for func in $funcs; do
865             echo "long check_$func(void) { return (long) $func; }"
866         done
867         echo "int main(void) { return 0; }"
868     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
869 }
870
871 check_class_headers_cpp(){
872     log check_class_headers_cpp "$@"
873     headers=$1
874     classes=$2
875     shift 2
876     {
877         for hdr in $headers; do
878             echo "#include <$hdr>"
879         done
880         echo "int main(void) { "
881         i=1
882         for class in $classes; do
883             echo "$class obj$i;"
884             i=$(expr $i + 1)
885         done
886         echo "return 0; }"
887     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
888 }
889
890 check_cpp_condition(){
891     log check_cpp_condition "$@"
892     header=$1
893     condition=$2
894     shift 2
895     check_cpp "$@" <<EOF
896 #include <$header>
897 #if !($condition)
898 #error "unsatisfied condition: $condition"
899 #endif
900 EOF
901 }
902
903 check_lib(){
904     log check_lib "$@"
905     header="$1"
906     func="$2"
907     shift 2
908     check_header $header && check_func $func "$@" && add_extralibs "$@"
909 }
910
911 check_lib2(){
912     log check_lib2 "$@"
913     headers="$1"
914     funcs="$2"
915     shift 2
916     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
917 }
918
919 check_lib_cpp(){
920     log check_lib_cpp "$@"
921     headers="$1"
922     classes="$2"
923     shift 2
924     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
925 }
926
927 check_pkg_config(){
928     log check_pkg_config "$@"
929     pkg="$1"
930     headers="$2"
931     funcs="$3"
932     shift 3
933     $pkg_config --exists $pkg 2>/dev/null || return
934     pkg_cflags=$($pkg_config --cflags $pkg)
935     pkg_libs=$($pkg_config --libs $pkg)
936     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
937         set_safe ${pkg}_cflags $pkg_cflags   &&
938         set_safe ${pkg}_libs   $pkg_libs
939 }
940
941 check_exec(){
942     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
943 }
944
945 check_exec_crash(){
946     code=$(cat)
947
948     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
949     # are safe but may not be available everywhere.  Thus we use
950     # raise(SIGTERM) instead.  The check is run in a subshell so we
951     # can redirect the "Terminated" message from the shell.  SIGBUS
952     # is not defined by standard C so it is used conditionally.
953
954     (check_exec "$@") >> $logfile 2>&1 <<EOF
955 #include <signal.h>
956 static void sighandler(int sig){
957     raise(SIGTERM);
958 }
959 int func(void){
960     $code
961 }
962 int (*func_ptr)(void) = func;
963 int main(void){
964     signal(SIGILL, sighandler);
965     signal(SIGFPE, sighandler);
966     signal(SIGSEGV, sighandler);
967 #ifdef SIGBUS
968     signal(SIGBUS, sighandler);
969 #endif
970     return func_ptr();
971 }
972 EOF
973 }
974
975 check_type(){
976     log check_type "$@"
977     headers=$1
978     type=$2
979     shift 2
980     disable_safe "$type"
981     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
982 }
983
984 check_struct(){
985     log check_type "$@"
986     headers=$1
987     struct=$2
988     member=$3
989     shift 3
990     disable_safe "${struct}_${member}"
991     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
992         enable_safe "${struct}_${member}"
993 }
994
995 require(){
996     name="$1"
997     header="$2"
998     func="$3"
999     shift 3
1000     check_lib $header $func "$@" || die "ERROR: $name not found"
1001 }
1002
1003 require2(){
1004     name="$1"
1005     headers="$2"
1006     func="$3"
1007     shift 3
1008     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1009 }
1010
1011 require_cpp(){
1012     name="$1"
1013     headers="$2"
1014     classes="$3"
1015     shift 3
1016     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1017 }
1018
1019 require_pkg_config(){
1020     pkg="$1"
1021     check_pkg_config "$@" || die "ERROR: $pkg not found"
1022     add_cflags    $(get_safe ${pkg}_cflags)
1023     add_extralibs $(get_safe ${pkg}_libs)
1024 }
1025
1026 hostcc_o(){
1027     eval printf '%s\\n' $HOSTCC_O
1028 }
1029
1030 check_host_cc(){
1031     log check_host_cc "$@"
1032     cat > $TMPC
1033     log_file $TMPC
1034     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1035 }
1036
1037 check_host_cflags(){
1038     log check_host_cflags "$@"
1039     set -- $($host_cflags_filter "$@")
1040     check_host_cc "$@" <<EOF && append host_cflags "$@"
1041 int x;
1042 EOF
1043 }
1044
1045 apply(){
1046     file=$1
1047     shift
1048     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1049 }
1050
1051 cp_if_changed(){
1052     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1053     mkdir -p "$(dirname $2)"
1054     cp -f "$1" "$2"
1055 }
1056
1057 force_include(){
1058     flag=$(eval printf '%s%s\\n' '$FORCE_INC' $1)
1059     append CFLAGS "$flag"
1060 }
1061
1062 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1063 # system-dependent things.
1064
1065 COMPONENT_LIST="
1066     bsfs
1067     decoders
1068     demuxers
1069     encoders
1070     filters
1071     hwaccels
1072     indevs
1073     muxers
1074     outdevs
1075     parsers
1076     protocols
1077 "
1078
1079 DOCUMENT_LIST="
1080     doc
1081     htmlpages
1082     manpages
1083     podpages
1084     txtpages
1085 "
1086
1087 PROGRAM_LIST="
1088     ffplay
1089     ffprobe
1090     ffserver
1091     ffmpeg
1092 "
1093
1094 CONFIG_LIST="
1095     $COMPONENT_LIST
1096     $DOCUMENT_LIST
1097     $PROGRAM_LIST
1098     avcodec
1099     avdevice
1100     avfilter
1101     avformat
1102     avresample
1103     avisynth
1104     bzlib
1105     crystalhd
1106     dct
1107     dwt
1108     dxva2
1109     fast_unaligned
1110     fft
1111     fontconfig
1112     frei0r
1113     gnutls
1114     gpl
1115     gray
1116     hardcoded_tables
1117     libaacplus
1118     libass
1119     libbluray
1120     libcaca
1121     libcdio
1122     libcelt
1123     libdc1394
1124     libfaac
1125     libfdk_aac
1126     libflite
1127     libfreetype
1128     libgsm
1129     libiec61883
1130     libilbc
1131     libmodplug
1132     libmp3lame
1133     libnut
1134     libopencore_amrnb
1135     libopencore_amrwb
1136     libopencv
1137     libopenjpeg
1138     libopus
1139     libpulse
1140     librtmp
1141     libschroedinger
1142     libspeex
1143     libstagefright_h264
1144     libtheora
1145     libtwolame
1146     libutvideo
1147     libv4l2
1148     libvo_aacenc
1149     libvo_amrwbenc
1150     libvorbis
1151     libvpx
1152     libx264
1153     libxavs
1154     libxvid
1155     lsp
1156     mdct
1157     memalign_hack
1158     memory_poisoning
1159     network
1160     nonfree
1161     openal
1162     openssl
1163     pic
1164     postproc
1165     rdft
1166     runtime_cpudetect
1167     safe_bitstream_reader
1168     shared
1169     small
1170     sram
1171     static
1172     swresample
1173     swscale
1174     swscale_alpha
1175     thumb
1176     vaapi
1177     vda
1178     vdpau
1179     version3
1180     xmm_clobber_test
1181     x11grab
1182     zlib
1183 "
1184
1185 THREADS_LIST='
1186     pthreads
1187     w32threads
1188     os2threads
1189 '
1190
1191 ARCH_LIST='
1192     alpha
1193     arm
1194     avr32
1195     avr32_ap
1196     avr32_uc
1197     bfin
1198     ia64
1199     m68k
1200     mips
1201     mips64
1202     parisc
1203     ppc
1204     ppc64
1205     s390
1206     sh4
1207     sparc
1208     sparc64
1209     tomi
1210     x86
1211     x86_32
1212     x86_64
1213 '
1214
1215 ARCH_EXT_LIST_X86='
1216     amd3dnow
1217     amd3dnowext
1218     avx
1219     fma4
1220     mmx
1221     mmxext
1222     sse
1223     sse2
1224     sse3
1225     sse4
1226     sse42
1227     ssse3
1228 '
1229
1230 ARCH_EXT_LIST="
1231     $ARCH_EXT_LIST_X86
1232     altivec
1233     armv5te
1234     armv6
1235     armv6t2
1236     armvfp
1237     mmi
1238     neon
1239     ppc4xx
1240     vfpv3
1241     vis
1242     mipsfpu
1243     mips32r2
1244     mipsdspr1
1245     mipsdspr2
1246 "
1247
1248 HAVE_LIST_PUB='
1249     bigendian
1250     fast_unaligned
1251 '
1252
1253 HAVE_LIST="
1254     $ARCH_EXT_LIST
1255     $(add_suffix _external $ARCH_EXT_LIST)
1256     $(add_suffix _inline   $ARCH_EXT_LIST)
1257     $HAVE_LIST_PUB
1258     $THREADS_LIST
1259     aligned_malloc
1260     aligned_stack
1261     alsa_asoundlib_h
1262     altivec_h
1263     arpa_inet_h
1264     asm_mod_q
1265     asm_mod_y
1266     asm_types_h
1267     attribute_may_alias
1268     attribute_packed
1269     broken_strtod
1270     cbrtf
1271     clock_gettime
1272     closesocket
1273     cmov
1274     cpuid
1275     cpunop
1276     dcbzl
1277     dev_bktr_ioctl_bt848_h
1278     dev_bktr_ioctl_meteor_h
1279     dev_ic_bt8xx_h
1280     dev_video_bktr_ioctl_bt848_h
1281     dev_video_meteor_ioctl_meteor_h
1282     dlfcn_h
1283     dlopen
1284     dos_paths
1285     dxva_h
1286     ebp_available
1287     ebx_available
1288     exp2
1289     exp2f
1290     fast_64bit
1291     fast_clz
1292     fast_cmov
1293     fcntl
1294     fork
1295     getaddrinfo
1296     gethrtime
1297     getopt
1298     GetProcessAffinityMask
1299     GetProcessMemoryInfo
1300     GetProcessTimes
1301     GetSystemTimeAsFileTime
1302     getrusage
1303     gettimeofday
1304     glob
1305     gnu_as
1306     ibm_asm
1307     inet_aton
1308     inline_asm
1309     isatty
1310     isinf
1311     isnan
1312     jack_port_get_latency_range
1313     kbhit
1314     ldbrx
1315     libdc1394_1
1316     libdc1394_2
1317     llrint
1318     llrintf
1319     local_aligned_16
1320     local_aligned_8
1321     localtime_r
1322     log2
1323     log2f
1324     loongson
1325     lrint
1326     lrintf
1327     lzo1x_999_compress
1328     machine_ioctl_bt848_h
1329     machine_ioctl_meteor_h
1330     makeinfo
1331     malloc_h
1332     MapViewOfFile
1333     memalign
1334     mkstemp
1335     mm_empty
1336     mmap
1337     nanosleep
1338     PeekNamedPipe
1339     perl
1340     pod2man
1341     poll_h
1342     posix_memalign
1343     pthread_cancel
1344     rdtsc
1345     rint
1346     round
1347     roundf
1348     rweflags
1349     sched_getaffinity
1350     sdl
1351     sdl_video_size
1352     setmode
1353     setrlimit
1354     Sleep
1355     sndio_h
1356     snprintf
1357     socklen_t
1358     soundcard_h
1359     strerror_r
1360     strptime
1361     struct_addrinfo
1362     struct_group_source_req
1363     struct_ip_mreq_source
1364     struct_ipv6_mreq
1365     struct_pollfd
1366     struct_rusage_ru_maxrss
1367     struct_sctp_event_subscribe
1368     struct_sockaddr_in6
1369     struct_sockaddr_sa_len
1370     struct_sockaddr_storage
1371     struct_v4l2_frmivalenum_discrete
1372     symver
1373     symver_asm_label
1374     symver_gnu_asm
1375     sysconf
1376     sysctl
1377     sys_mman_h
1378     sys_param_h
1379     sys_resource_h
1380     sys_select_h
1381     sys_soundcard_h
1382     sys_time_h
1383     sys_videoio_h
1384     termios_h
1385     texi2html
1386     threads
1387     trunc
1388     truncf
1389     unistd_h
1390     usleep
1391     vfp_args
1392     VirtualAlloc
1393     windows_h
1394     winsock2_h
1395     xform_asm
1396     xgetbv
1397     xmm_clobbers
1398     yasm
1399 "
1400
1401 # options emitted with CONFIG_ prefix but not available on command line
1402 CONFIG_EXTRA="
1403     aandcttables
1404     ac3dsp
1405     avutil
1406     error_resilience
1407     gcrypt
1408     golomb
1409     gplv3
1410     h264chroma
1411     h264dsp
1412     h264pred
1413     h264qpel
1414     huffman
1415     lgplv3
1416     lpc
1417     mpegaudiodsp
1418     mpegvideo
1419     mpegvideoenc
1420     nettle
1421     rangecoder
1422     rtpdec
1423     sinewin
1424     vp3dsp
1425 "
1426
1427 CMDLINE_SELECT="
1428     $ARCH_EXT_LIST
1429     $CONFIG_LIST
1430     $THREADS_LIST
1431     asm
1432     coverage
1433     cross_compile
1434     debug
1435     extra_warnings
1436     logging
1437     optimizations
1438     stripping
1439     symver
1440     yasm
1441 "
1442
1443 PATHS_LIST='
1444     bindir
1445     datadir
1446     incdir
1447     libdir
1448     mandir
1449     prefix
1450     shlibdir
1451 '
1452
1453 CMDLINE_SET="
1454     $PATHS_LIST
1455     ar
1456     arch
1457     as
1458     assert_level
1459     build_suffix
1460     cc
1461     cpu
1462     cross_prefix
1463     cxx
1464     dep_cc
1465     extra_version
1466     host_cc
1467     host_cflags
1468     host_ld
1469     host_ldflags
1470     host_libs
1471     host_os
1472     install
1473     ld
1474     logfile
1475     malloc_prefix
1476     nm
1477     optflags
1478     pkg_config
1479     postproc_version
1480     progs_suffix
1481     random_seed
1482     samples
1483     strip
1484     sysinclude
1485     sysroot
1486     target_exec
1487     target_os
1488     target_path
1489     valgrind
1490     yasmexe
1491 "
1492
1493 CMDLINE_APPEND="
1494     extra_cflags
1495     extra_cxxflags
1496 "
1497
1498 # code dependency declarations
1499
1500 # architecture extensions
1501
1502 armv5te_deps="arm"
1503 armv6_deps="arm"
1504 armv6t2_deps="arm"
1505 armvfp_deps="arm"
1506 neon_deps="arm"
1507 vfpv3_deps="armvfp"
1508
1509 mipsfpu_deps="mips"
1510 mips32r2_deps="mips"
1511 mipsdspr1_deps="mips"
1512 mipsdspr2_deps="mips"
1513 mmi_deps="mips"
1514
1515 altivec_deps="ppc"
1516 ppc4xx_deps="ppc"
1517
1518 vis_deps="sparc"
1519
1520 x86_64_suggest="cmov fast_cmov"
1521
1522 amd3dnow_deps="mmx"
1523 amd3dnowext_deps="amd3dnow"
1524 mmx_deps="x86"
1525 mmxext_deps="mmx"
1526 sse_deps="mmxext"
1527 sse2_deps="sse"
1528 sse3_deps="sse2"
1529 ssse3_deps="sse3"
1530 sse4_deps="ssse3"
1531 sse42_deps="sse4"
1532 avx_deps="sse42"
1533 fma4_deps="avx"
1534
1535 mmx_external_deps="yasm"
1536 mmx_inline_deps="inline_asm"
1537 mmx_suggest="mmx_external mmx_inline"
1538
1539 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1540     eval dep=\$${ext}_deps
1541     eval ${ext}_external_deps='"${dep}_external"'
1542     eval ${ext}_inline_deps='"${dep}_inline"'
1543     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1544 done
1545
1546 aligned_stack_if_any="ppc x86"
1547 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1548 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1549 fast_unaligned_if_any="armv6 ppc x86"
1550
1551 inline_asm_deps="!tms470"
1552 need_memalign="altivec neon sse"
1553
1554 symver_if_any="symver_asm_label symver_gnu_asm"
1555
1556 # subsystems
1557 dct_select="rdft"
1558 mdct_select="fft"
1559 rdft_select="fft"
1560 mpegaudiodsp_select="dct"
1561 mpegvideoenc_select="mpegvideo"
1562
1563 # decoders / encoders / hardware accelerators
1564 aac_decoder_select="mdct sinewin"
1565 aac_encoder_select="mdct sinewin"
1566 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1567 ac3_decoder_select="mdct ac3dsp ac3_parser"
1568 ac3_encoder_select="mdct ac3dsp"
1569 ac3_fixed_encoder_select="mdct ac3dsp"
1570 alac_encoder_select="lpc"
1571 amrnb_decoder_select="lsp"
1572 amrwb_decoder_select="lsp"
1573 amv_encoder_select="aandcttables"
1574 atrac1_decoder_select="mdct sinewin"
1575 atrac3_decoder_select="mdct"
1576 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1577 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1578 cavs_decoder_select="golomb mpegvideo"
1579 cook_decoder_select="mdct sinewin"
1580 cscd_decoder_suggest="zlib"
1581 dca_decoder_select="mdct"
1582 dirac_decoder_select="dwt golomb"
1583 dnxhd_encoder_select="aandcttables mpegvideoenc"
1584 dxa_decoder_select="zlib"
1585 eac3_decoder_select="ac3_decoder"
1586 eac3_encoder_select="ac3_encoder"
1587 eamad_decoder_select="aandcttables error_resilience"
1588 eatgq_decoder_select="aandcttables"
1589 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1590 exr_decoder_select="zlib"
1591 ffv1_decoder_select="golomb rangecoder"
1592 ffv1_encoder_select="rangecoder"
1593 ffvhuff_encoder_select="huffman"
1594 flac_decoder_select="golomb"
1595 flac_encoder_select="golomb lpc"
1596 flashsv_decoder_select="zlib"
1597 flashsv_encoder_select="zlib"
1598 flashsv2_encoder_select="zlib"
1599 flashsv2_decoder_select="zlib"
1600 flv_decoder_select="h263_decoder"
1601 flv_encoder_select="h263_encoder"
1602 fraps_decoder_select="huffman"
1603 h261_decoder_select="error_resilience mpegvideo"
1604 h261_encoder_select="aandcttables mpegvideoenc"
1605 h263_decoder_select="error_resilience h263_parser mpegvideo"
1606 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1607 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1608 h263i_decoder_select="h263_decoder"
1609 h263p_encoder_select="h263_encoder"
1610 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1611 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1612 h264_dxva2_hwaccel_deps="dxva2api_h"
1613 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1614 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1615 h264_vda_decoder_select="vda h264_parser h264_decoder"
1616 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1617 h264_vda_hwaccel_select="vda h264_decoder"
1618 h264_vdpau_decoder_select="vdpau h264_decoder"
1619 huffyuv_encoder_select="huffman"
1620 iac_decoder_select="fft mdct sinewin"
1621 imc_decoder_select="fft mdct sinewin"
1622 jpegls_decoder_select="golomb"
1623 jpegls_encoder_select="golomb"
1624 ljpeg_encoder_select="aandcttables mpegvideoenc"
1625 loco_decoder_select="golomb"
1626 mdec_decoder_select="error_resilience mpegvideo"
1627 mjpeg_encoder_select="aandcttables mpegvideoenc"
1628 mlp_decoder_select="mlp_parser"
1629 mp1_decoder_select="mpegaudiodsp"
1630 mp1float_decoder_select="mpegaudiodsp"
1631 mp2_decoder_select="mpegaudiodsp"
1632 mp2float_decoder_select="mpegaudiodsp"
1633 mp3_decoder_select="mpegaudiodsp"
1634 mp3adu_decoder_select="mpegaudiodsp"
1635 mp3adufloat_decoder_select="mpegaudiodsp"
1636 mp3float_decoder_select="mpegaudiodsp"
1637 mp3on4_decoder_select="mpegaudiodsp"
1638 mp3on4float_decoder_select="mpegaudiodsp"
1639 mpc7_decoder_select="mpegaudiodsp"
1640 mpc8_decoder_select="mpegaudiodsp"
1641 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1642 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1643 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1644 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1645 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1646 mpeg1video_decoder_select="error_resilience mpegvideo"
1647 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1648 mpeg2_crystalhd_decoder_select="crystalhd"
1649 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1650 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1651 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1652 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1653 mpeg2video_decoder_select="error_resilience mpegvideo"
1654 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1655 mpeg4_crystalhd_decoder_select="crystalhd"
1656 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1657 mpeg4_encoder_select="h263_encoder"
1658 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1659 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1660 msmpeg4_crystalhd_decoder_select="crystalhd"
1661 msmpeg4v1_decoder_select="h263_decoder"
1662 msmpeg4v1_encoder_select="h263_encoder"
1663 msmpeg4v2_decoder_select="h263_decoder"
1664 msmpeg4v2_encoder_select="h263_encoder"
1665 msmpeg4v3_decoder_select="h263_decoder"
1666 msmpeg4v3_encoder_select="h263_encoder"
1667 mss2_decoder_select="vc1_decoder"
1668 nellymoser_decoder_select="mdct sinewin"
1669 nellymoser_encoder_select="mdct sinewin"
1670 png_decoder_select="zlib"
1671 png_encoder_select="zlib"
1672 qcelp_decoder_select="lsp"
1673 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1674 ra_144_encoder_select="lpc"
1675 ralf_decoder_select="golomb"
1676 rv10_decoder_select="h263_decoder"
1677 rv10_encoder_select="h263_encoder"
1678 rv20_decoder_select="h263_decoder"
1679 rv20_encoder_select="h263_encoder"
1680 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1681 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1682 shorten_decoder_select="golomb"
1683 sipr_decoder_select="lsp"
1684 snow_decoder_select="dwt rangecoder"
1685 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1686 sonic_decoder_select="golomb"
1687 sonic_encoder_select="golomb"
1688 sonic_ls_encoder_select="golomb"
1689 svq1_decoder_select="error_resilience mpegvideo"
1690 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1691 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1692 svq3_decoder_suggest="zlib"
1693 theora_decoder_select="vp3_decoder"
1694 tiff_decoder_suggest="zlib"
1695 tiff_encoder_suggest="zlib"
1696 tscc_decoder_select="zlib"
1697 twinvq_decoder_select="mdct lsp sinewin"
1698 vc1_crystalhd_decoder_select="crystalhd"
1699 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1700 vc1_dxva2_hwaccel_deps="dxva2api_h"
1701 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1702 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1703 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1704 vc1image_decoder_select="vc1_decoder"
1705 vorbis_decoder_select="mdct"
1706 vorbis_encoder_select="mdct"
1707 vp3_decoder_select="vp3dsp"
1708 vp5_decoder_select="vp3dsp"
1709 vp6_decoder_select="huffman vp3dsp"
1710 vp6a_decoder_select="vp6_decoder"
1711 vp6f_decoder_select="vp6_decoder"
1712 vp8_decoder_select="h264pred h264qpel"
1713 wmapro_decoder_select="mdct sinewin"
1714 wmav1_decoder_select="mdct sinewin"
1715 wmav1_encoder_select="mdct sinewin"
1716 wmav2_decoder_select="mdct sinewin"
1717 wmav2_encoder_select="mdct sinewin"
1718 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1719 wmv1_decoder_select="h263_decoder"
1720 wmv1_encoder_select="h263_encoder"
1721 wmv2_decoder_select="h263_decoder"
1722 wmv2_encoder_select="h263_encoder"
1723 wmv3_decoder_select="vc1_decoder"
1724 wmv3_crystalhd_decoder_select="crystalhd"
1725 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1726 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1727 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1728 wmv3image_decoder_select="wmv3_decoder"
1729 zerocodec_decoder_select="zlib"
1730 zlib_decoder_select="zlib"
1731 zlib_encoder_select="zlib"
1732 zmbv_decoder_select="zlib"
1733 zmbv_encoder_select="zlib"
1734
1735 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1736 vaapi_deps="va_va_h"
1737 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1738 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1739
1740 # parsers
1741 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1742 mpeg4video_parser_select="error_resilience mpegvideo"
1743 mpegvideo_parser_select="error_resilience mpegvideo"
1744 vc1_parser_select="error_resilience mpegvideo"
1745
1746 # external libraries
1747 libaacplus_encoder_deps="libaacplus"
1748 libcelt_decoder_deps="libcelt"
1749 libfaac_encoder_deps="libfaac"
1750 libfdk_aac_encoder_deps="libfdk_aac"
1751 libgsm_decoder_deps="libgsm"
1752 libgsm_encoder_deps="libgsm"
1753 libgsm_ms_decoder_deps="libgsm"
1754 libgsm_ms_encoder_deps="libgsm"
1755 libilbc_decoder_deps="libilbc"
1756 libilbc_encoder_deps="libilbc"
1757 libmodplug_demuxer_deps="libmodplug"
1758 libmp3lame_encoder_deps="libmp3lame"
1759 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1760 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1761 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1762 libopenjpeg_decoder_deps="libopenjpeg"
1763 libopenjpeg_encoder_deps="libopenjpeg"
1764 libopus_decoder_deps="libopus"
1765 libschroedinger_decoder_deps="libschroedinger"
1766 libschroedinger_encoder_deps="libschroedinger"
1767 libspeex_decoder_deps="libspeex"
1768 libspeex_encoder_deps="libspeex"
1769 libstagefright_h264_decoder_deps="libstagefright_h264"
1770 libtheora_encoder_deps="libtheora"
1771 libtwolame_encoder_deps="libtwolame"
1772 libvo_aacenc_encoder_deps="libvo_aacenc"
1773 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1774 libvorbis_decoder_deps="libvorbis"
1775 libvorbis_encoder_deps="libvorbis"
1776 libvpx_decoder_deps="libvpx"
1777 libvpx_encoder_deps="libvpx"
1778 libx264_encoder_deps="libx264"
1779 libx264rgb_encoder_deps="libx264"
1780 libxavs_encoder_deps="libxavs"
1781 libxvid_encoder_deps="libxvid"
1782 libutvideo_decoder_deps="libutvideo"
1783 libutvideo_encoder_deps="libutvideo"
1784
1785 # demuxers / muxers
1786 ac3_demuxer_select="ac3_parser"
1787 asf_stream_muxer_select="asf_muxer"
1788 avisynth_demuxer_deps="avisynth"
1789 dirac_demuxer_select="dirac_parser"
1790 eac3_demuxer_select="ac3_parser"
1791 flac_demuxer_select="flac_parser"
1792 ipod_muxer_select="mov_muxer"
1793 libnut_demuxer_deps="libnut"
1794 libnut_muxer_deps="libnut"
1795 matroska_audio_muxer_select="matroska_muxer"
1796 matroska_demuxer_suggest="zlib bzlib"
1797 mov_demuxer_suggest="zlib"
1798 mp3_demuxer_select="mpegaudio_parser"
1799 mp4_muxer_select="mov_muxer"
1800 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1801 mpegtsraw_demuxer_select="mpegts_demuxer"
1802 mxf_d10_muxer_select="mxf_muxer"
1803 ogg_demuxer_select="golomb"
1804 psp_muxer_select="mov_muxer"
1805 rtp_demuxer_select="sdp_demuxer"
1806 rtp_muxer_select="mpegvideo"
1807 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1808 rtsp_demuxer_select="http_protocol rtpdec"
1809 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1810 sap_demuxer_select="sdp_demuxer"
1811 sap_muxer_select="rtp_muxer rtp_protocol"
1812 sdp_demuxer_select="rtpdec"
1813 spdif_muxer_select="aac_parser"
1814 tg2_muxer_select="mov_muxer"
1815 tgp_muxer_select="mov_muxer"
1816 w64_demuxer_deps="wav_demuxer"
1817
1818 # indevs / outdevs
1819 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1820 alsa_outdev_deps="alsa_asoundlib_h"
1821 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1822 caca_outdev_deps="libcaca"
1823 dshow_indev_deps="IBaseFilter"
1824 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1825 dv1394_indev_deps="dv1394 dv_demuxer"
1826 fbdev_indev_deps="linux_fb_h"
1827 iec61883_indev_deps="libiec61883"
1828 jack_indev_deps="jack_jack_h sem_timedwait"
1829 lavfi_indev_deps="avfilter"
1830 libcdio_indev_deps="libcdio"
1831 libdc1394_indev_deps="libdc1394"
1832 libv4l2_indev_deps="libv4l2"
1833 openal_indev_deps="openal"
1834 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1835 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1836 pulse_indev_deps="libpulse"
1837 sdl_outdev_deps="sdl"
1838 sndio_indev_deps="sndio_h"
1839 sndio_outdev_deps="sndio_h"
1840 v4l_indev_deps="linux_videodev_h"
1841 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1842 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1843 vfwcap_indev_extralibs="-lavicap32"
1844 x11grab_indev_deps="x11grab"
1845
1846 # protocols
1847 bluray_protocol_deps="libbluray"
1848 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1849 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1850 ffrtmpcrypt_protocol_select="tcp_protocol"
1851 ffrtmphttp_protocol_deps="!librtmp_protocol"
1852 ffrtmphttp_protocol_select="http_protocol"
1853 gopher_protocol_deps="network"
1854 httpproxy_protocol_deps="network"
1855 httpproxy_protocol_select="tcp_protocol"
1856 http_protocol_deps="network"
1857 http_protocol_select="tcp_protocol"
1858 https_protocol_select="tls_protocol"
1859 librtmp_protocol_deps="librtmp"
1860 librtmpe_protocol_deps="librtmp"
1861 librtmps_protocol_deps="librtmp"
1862 librtmpt_protocol_deps="librtmp"
1863 librtmpte_protocol_deps="librtmp"
1864 mmsh_protocol_select="http_protocol"
1865 mmst_protocol_deps="network"
1866 rtmp_protocol_deps="!librtmp_protocol"
1867 rtmp_protocol_select="tcp_protocol"
1868 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1869 rtmps_protocol_deps="!librtmp_protocol"
1870 rtmps_protocol_select="tls_protocol"
1871 rtmpt_protocol_select="ffrtmphttp_protocol"
1872 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1873 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1874 rtp_protocol_select="udp_protocol"
1875 sctp_protocol_deps="network struct_sctp_event_subscribe"
1876 tcp_protocol_deps="network"
1877 tls_protocol_deps_any="openssl gnutls"
1878 tls_protocol_select="tcp_protocol"
1879 udp_protocol_deps="network"
1880
1881 # filters
1882 aconvert_filter_deps="swresample"
1883 amovie_filter_deps="avcodec avformat"
1884 aresample_filter_deps="swresample"
1885 ass_filter_deps="libass"
1886 asyncts_filter_deps="avresample"
1887 atempo_filter_deps="avcodec rdft"
1888 blackframe_filter_deps="gpl"
1889 boxblur_filter_deps="gpl"
1890 colormatrix_filter_deps="gpl"
1891 cropdetect_filter_deps="gpl"
1892 decimate_filter_deps="gpl"
1893 delogo_filter_deps="gpl"
1894 deshake_filter_deps="avcodec"
1895 drawtext_filter_deps="libfreetype"
1896 flite_filter_deps="libflite"
1897 frei0r_filter_deps="frei0r dlopen"
1898 frei0r_filter_extralibs='$ldl'
1899 frei0r_src_filter_deps="frei0r dlopen"
1900 frei0r_src_filter_extralibs='$ldl'
1901 hqdn3d_filter_deps="gpl"
1902 movie_filter_deps="avcodec avformat"
1903 mp_filter_deps="gpl avcodec swscale postproc"
1904 mptestsrc_filter_deps="gpl"
1905 negate_filter_deps="lut_filter"
1906 resample_filter_deps="avresample"
1907 ocv_filter_deps="libopencv"
1908 pan_filter_deps="swresample"
1909 removelogo_filter_deps="avcodec avformat swscale"
1910 scale_filter_deps="swscale"
1911 smartblur_filter_deps="gpl swscale"
1912 select_filter_deps="avcodec"
1913 showspectrum_filter_deps="avcodec"
1914 super2xsai_filter_deps="gpl"
1915 tinterlace_filter_deps="gpl"
1916 yadif_filter_deps="gpl"
1917
1918 # libraries
1919 avdevice_deps="avcodec avformat"
1920 avformat_deps="avcodec"
1921 postproc_deps="gpl"
1922
1923 # programs
1924 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1925 ffmpeg_select="buffersink_filter format_filter aformat_filter
1926                setpts_filter null_filter anull_filter abuffersink_filter"
1927 ffplay_deps="avcodec avformat swscale swresample sdl"
1928 ffplay_select="buffersink_filter rdft"
1929 ffprobe_deps="avcodec avformat"
1930 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1931 ffserver_extralibs='$ldl'
1932
1933 # documentation
1934 podpages_deps="perl"
1935 manpages_deps="perl pod2man"
1936 htmlpages_deps="texi2html"
1937 txtpages_deps="makeinfo"
1938 doc_deps_any="manpages htmlpages podpages txtpages"
1939
1940 # tests
1941 colormatrix1_test_deps="colormatrix_filter"
1942 colormatrix2_test_deps="colormatrix_filter"
1943 flashsv2_test_deps="zlib"
1944 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1945 mpng_test_deps="zlib"
1946 pp_test_deps="mp_filter"
1947 pp2_test_deps="mp_filter"
1948 pp3_test_deps="mp_filter"
1949 pp4_test_deps="mp_filter"
1950 pp5_test_deps="mp_filter"
1951 pp6_test_deps="mp_filter"
1952 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1953 zlib_test_deps="zlib"
1954 zmbv_test_deps="zlib"
1955
1956 test_deps(){
1957     suf1=$1
1958     suf2=$2
1959     shift 2
1960     for v; do
1961         dep=${v%=*}
1962         tests=${v#*=}
1963         for name in ${tests}; do
1964             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1965         done
1966     done
1967 }
1968
1969 test_deps _muxer _demuxer                                               \
1970     aiff                                                                \
1971     pcm_alaw=alaw                                                       \
1972     asf                                                                 \
1973     au                                                                  \
1974     avi                                                                 \
1975     dv=dv_fmt                                                           \
1976     ffm                                                                 \
1977     flv=flv_fmt                                                         \
1978     gxf                                                                 \
1979     matroska=mkv                                                        \
1980     mmf                                                                 \
1981     mov="mov ismv"                                                      \
1982     pcm_mulaw=mulaw                                                     \
1983     mxf="mxf mxf_d10"                                                   \
1984     nut                                                                 \
1985     ogg="ogg ogg_vp3"                                                   \
1986     rawvideo=pixfmt                                                     \
1987     rm                                                                  \
1988     swf                                                                 \
1989     mpegts=ts                                                           \
1990     voc                                                                 \
1991     wav                                                                 \
1992     yuv4mpegpipe=yuv4mpeg                                               \
1993
1994 # default parameters
1995
1996 logfile="config.log"
1997
1998 # installation paths
1999 prefix_default="/usr/local"
2000 bindir_default='${prefix}/bin'
2001 datadir_default='${prefix}/share/ffmpeg'
2002 incdir_default='${prefix}/include'
2003 libdir_default='${prefix}/lib'
2004 mandir_default='${prefix}/share/man'
2005 shlibdir_default="$libdir_default"
2006 postproc_version_default="current"
2007
2008 # toolchain
2009 ar_default="ar"
2010 cc_default="gcc"
2011 cxx_default="g++"
2012 host_cc_default="gcc"
2013 install="install"
2014 ln_s="ln -sf"
2015 nm_default="nm"
2016 objformat="elf"
2017 pkg_config_default=pkg-config
2018 ranlib="ranlib"
2019 strip_default="strip"
2020 yasmexe_default="yasm"
2021
2022 nm_opts='-g'
2023 nogas=":"
2024
2025 # machine
2026 arch_default=$(uname -m)
2027 cpu="generic"
2028
2029 # OS
2030 target_os_default=$(tolower $(uname -s))
2031 host_os=$target_os_default
2032
2033 # alternative libpostproc version
2034 ALT_PP_VER_MAJOR=51
2035 ALT_PP_VER_MINOR=2
2036 ALT_PP_VER_MICRO=101
2037 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
2038
2039 # configurable options
2040 enable $PROGRAM_LIST
2041 enable $DOCUMENT_LIST
2042
2043 enable avcodec
2044 enable avdevice
2045 enable avfilter
2046 enable avformat
2047 enable avutil
2048 enable postproc
2049 enable stripping
2050 enable swresample
2051 enable swscale
2052
2053 enable asm
2054 enable debug
2055 enable doc
2056 enable network
2057 enable optimizations
2058 enable safe_bitstream_reader
2059 enable static
2060 enable swscale_alpha
2061
2062 # build settings
2063 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2064 FFSERVERLDFLAGS=-Wl,-E
2065 LIBPREF="lib"
2066 LIBSUF=".a"
2067 FULLNAME='$(NAME)$(BUILDSUF)'
2068 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2069 SLIBPREF="lib"
2070 SLIBSUF=".so"
2071 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2072 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2073 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2074 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2075 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2076 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2077
2078 asflags_filter=echo
2079 cflags_filter=echo
2080 ldflags_filter=echo
2081
2082 AS_C='-c'
2083 AS_O='-o $@'
2084 CC_C='-c'
2085 CC_E='-E -o $@'
2086 CC_O='-o $@'
2087 CXX_C='-c'
2088 CXX_O='-o $@'
2089 LD_O='-o $@'
2090 FORCE_INC="-include"
2091 LD_LIB='-l%'
2092 LD_PATH='-L'
2093 HOSTCC_C='-c'
2094 HOSTCC_O='-o $@'
2095 HOSTLD_O='-o $@'
2096
2097 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2098 host_libs='-lm'
2099 host_cflags_filter=echo
2100 host_ldflags_filter=echo
2101
2102 target_path='$(CURDIR)'
2103
2104 # since the object filename is not given with the -MM flag, the compiler
2105 # is only able to print the basename, and we must add the path ourselves
2106 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2107 DEPFLAGS='-MM'
2108
2109 # find source path
2110 if test -f configure; then
2111     source_path=.
2112 else
2113     source_path=$(cd $(dirname "$0"); pwd)
2114     echo "$source_path" | grep -q '[[:blank:]]' &&
2115         die "Out of tree builds are impossible with whitespace in source path."
2116     test -e "$source_path/config.h" &&
2117         die "Out of tree builds are impossible with config.h in source dir."
2118 fi
2119
2120 for v in "$@"; do
2121     r=${v#*=}
2122     l=${v%"$r"}
2123     r=$(sh_quote "$r")
2124     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2125 done
2126
2127 find_things(){
2128     thing=$1
2129     pattern=$2
2130     file=$source_path/$3
2131     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2132 }
2133
2134 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2135 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2136 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2137 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2138 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2139 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2140 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2141 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2142 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2143 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2144 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2145
2146 ALL_COMPONENTS="
2147     $BSF_LIST
2148     $DECODER_LIST
2149     $DEMUXER_LIST
2150     $ENCODER_LIST
2151     $FILTER_LIST
2152     $HWACCEL_LIST
2153     $INDEV_LIST
2154     $MUXER_LIST
2155     $OUTDEV_LIST
2156     $PARSER_LIST
2157     $PROTOCOL_LIST
2158 "
2159
2160 find_tests(){
2161     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
2162 }
2163
2164 LAVF_FATE_TESTS=$(find_tests lavf-fate)
2165 LAVF_TESTS=$(find_tests lavf)
2166 LAVFI_TESTS=$(find_tests lavfi)
2167 SEEK_TESTS=$(find_tests seek seek_)
2168
2169 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
2170
2171 for n in $COMPONENT_LIST; do
2172     v=$(toupper ${n%s})_LIST
2173     eval enable \$$v
2174     eval ${n}_if_any="\$$v"
2175 done
2176
2177 enable $ARCH_EXT_LIST $ALL_TESTS
2178
2179 die_unknown(){
2180     echo "Unknown option \"$1\"."
2181     echo "See $0 --help for available options."
2182     exit 1
2183 }
2184
2185 show_list() {
2186     suffix=_$1
2187     shift
2188     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2189     exit 0
2190 }
2191
2192 rand_list(){
2193     IFS=', '
2194     set -- $*
2195     unset IFS
2196     for thing; do
2197         comp=${thing%:*}
2198         prob=${thing#$comp}
2199         prob=${prob#:}
2200         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2201         echo "prob ${prob:-0.5}"
2202         printf '%s\n' $comp
2203     done
2204 }
2205
2206 do_random(){
2207     action=$1
2208     shift
2209     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2210     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2211 }
2212
2213 for opt do
2214     optval="${opt#*=}"
2215     case "$opt" in
2216     --extra-ldflags=*) add_ldflags $optval
2217     ;;
2218     --extra-libs=*) add_extralibs $optval
2219     ;;
2220     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2221     ;;
2222     --enable-debug=*) debuglevel="$optval"
2223     ;;
2224     --disable-everything)
2225     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2226     ;;
2227     --enable-random|--disable-random)
2228     action=${opt%%-random}
2229     do_random ${action#--} $COMPONENT_LIST
2230     ;;
2231     --enable-random=*|--disable-random=*)
2232     action=${opt%%-random=*}
2233     do_random ${action#--} $optval
2234     ;;
2235     --enable-*=*|--disable-*=*)
2236     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2237     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2238     eval list=\$$(toupper $thing)_LIST
2239     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2240     $action $(filter "$name" $list)
2241     ;;
2242     --enable-?*|--disable-?*)
2243     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2244     if is_in $option $COMPONENT_LIST; then
2245         test $action = disable && action=unset
2246         eval $action \$$(toupper ${option%s})_LIST
2247     elif is_in $option $CMDLINE_SELECT; then
2248         $action $option
2249     else
2250         die_unknown $opt
2251     fi
2252     ;;
2253     --list-*)
2254         NAME="${opt#--list-}"
2255         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2256         NAME=${NAME%s}
2257         eval show_list $NAME \$$(toupper $NAME)_LIST
2258     ;;
2259     --help|-h) show_help
2260     ;;
2261     *)
2262     optname="${opt%%=*}"
2263     optname="${optname#--}"
2264     optname=$(echo "$optname" | sed 's/-/_/g')
2265     if is_in $optname $CMDLINE_SET; then
2266         eval $optname='$optval'
2267     elif is_in $optname $CMDLINE_APPEND; then
2268         append $optname "$optval"
2269     else
2270          die_unknown $opt
2271     fi
2272     ;;
2273     esac
2274 done
2275
2276 disabled logging && logfile=/dev/null
2277
2278 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2279 set >> $logfile
2280
2281 test -n "$cross_prefix" && enable cross_compile
2282
2283 if enabled cross_compile; then
2284     test -n "$arch" && test -n "$target_os" ||
2285         die "Must specify target arch and OS when cross-compiling"
2286 fi
2287
2288 set_default arch target_os postproc_version
2289
2290 # Check if we should build alternative libpostproc version instead of current
2291 if   test "$postproc_version" = $ALT_PP_VER; then
2292   LIBPOSTPROC_VERSION=$ALT_PP_VER
2293   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2294   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2295   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2296 elif test "$postproc_version" != current; then
2297   die "Invalid argument to --postproc-version. See --help output."
2298 fi
2299
2300 ar_default="${cross_prefix}${ar_default}"
2301 cc_default="${cross_prefix}${cc_default}"
2302 cxx_default="${cross_prefix}${cxx_default}"
2303 nm_default="${cross_prefix}${nm_default}"
2304 pkg_config_default="${cross_prefix}${pkg_config_default}"
2305 ranlib="${cross_prefix}${ranlib}"
2306 strip_default="${cross_prefix}${strip_default}"
2307
2308 sysinclude_default="${sysroot}/usr/include"
2309
2310 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2311 enabled cross_compile || host_cc_default=$cc
2312 set_default host_cc
2313
2314 if ! $pkg_config --version >/dev/null 2>&1; then
2315     warn "$pkg_config not found, library detection may fail."
2316     pkg_config=false
2317 fi
2318
2319 exesuf() {
2320     case $1 in
2321         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2322     esac
2323 }
2324
2325 EXESUF=$(exesuf $target_os)
2326 HOSTEXESUF=$(exesuf $host_os)
2327
2328 # set temporary file name
2329 : ${TMPDIR:=$TEMPDIR}
2330 : ${TMPDIR:=$TMP}
2331 : ${TMPDIR:=/tmp}
2332
2333 if ! check_cmd mktemp -u XXXXXX; then
2334     # simple replacement for missing mktemp
2335     # NOT SAFE FOR GENERAL USE
2336     mktemp(){
2337         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2338     }
2339 fi
2340
2341 tmpfile(){
2342     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2343         (set -C; exec > $tmp) 2>/dev/null ||
2344         die "Unable to create temporary file in $TMPDIR."
2345     append TMPFILES $tmp
2346     eval $1=$tmp
2347 }
2348
2349 trap 'rm -f -- $TMPFILES' EXIT
2350
2351 tmpfile TMPASM .asm
2352 tmpfile TMPC   .c
2353 tmpfile TMPCPP .cpp
2354 tmpfile TMPE   $EXESUF
2355 tmpfile TMPH   .h
2356 tmpfile TMPO   .o
2357 tmpfile TMPS   .S
2358 tmpfile TMPSH  .sh
2359 tmpfile TMPV   .ver
2360
2361 unset -f mktemp
2362
2363 chmod +x $TMPE
2364
2365 # make sure we can execute files in $TMPDIR
2366 cat > $TMPSH 2>> $logfile <<EOF
2367 #! /bin/sh
2368 EOF
2369 chmod +x $TMPSH >> $logfile 2>&1
2370 if ! $TMPSH >> $logfile 2>&1; then
2371     cat <<EOF
2372 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2373 variable to another directory and make sure that it is not mounted noexec.
2374 EOF
2375     die "Sanity test failed."
2376 fi
2377
2378 pgi_flags(){
2379     for flag; do
2380         case $flag in
2381             -fomit-frame-pointer) echo -Mnoframe ;;
2382             -g)                   echo -gopt ;;
2383             *)                    echo $flag ;;
2384         esac
2385     done
2386 }
2387
2388 suncc_flags(){
2389     for flag; do
2390         case $flag in
2391             -march=*|-mcpu=*)
2392                 case "${flag#*=}" in
2393                     native)                   echo -xtarget=native       ;;
2394                     v9|niagara)               echo -xarch=sparc          ;;
2395                     ultrasparc)               echo -xarch=sparcvis       ;;
2396                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2397                     i586|pentium)             echo -xchip=pentium        ;;
2398                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2399                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2400                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2401                     pentium4*)          echo -xtarget=pentium4           ;;
2402                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2403                     *-sse3)             echo -xarch=sse3                 ;;
2404                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2405                     amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2406                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2407                     k8|opteron|athlon64|athlon-fx)
2408                                               echo -xarch=sse2a          ;;
2409                     athlon*)                  echo -xarch=pentium_proa   ;;
2410                 esac
2411                 ;;
2412             -std=c99)             echo -xc99              ;;
2413             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2414             -fPIC)                echo -KPIC -xcode=pic32 ;;
2415             -W*,*)                echo $flag              ;;
2416             -f*-*|-W*)                                    ;;
2417             *)                    echo $flag              ;;
2418         esac
2419     done
2420 }
2421
2422 tms470_flags(){
2423     for flag; do
2424         case $flag in
2425             -march=*|-mcpu=*)
2426                 case "${flag#*=}" in
2427                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2428                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2429                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2430                     armv6*|arm11*)          echo -mv=6   ;;
2431                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2432                                             echo -mv=5e  ;;
2433                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2434                 esac
2435                 ;;
2436             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2437             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2438             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2439             -msoft-float)   echo --float_support=vfplib       ;;
2440             -O[0-3]|-mf=*)  echo $flag                        ;;
2441             -g)             echo -g -mn                       ;;
2442             -pds=*)         echo $flag                        ;;
2443             -D*|-I*)        echo $flag                        ;;
2444             --gcc|--abi=*)  echo $flag                        ;;
2445             -me)            echo $flag                        ;;
2446         esac
2447     done
2448 }
2449
2450 probe_cc(){
2451     pfx=$1
2452     _cc=$2
2453
2454     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2455     unset _ld_o _ldflags _ld_lib _ld_path
2456     unset _depflags _DEPCMD _DEPFLAGS
2457     _flags_filter=echo
2458
2459     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2460         _type=llvm_gcc
2461         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2462         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2463         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2464         _cflags_speed='-O3'
2465         _cflags_size='-Os'
2466     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2467         _type=gcc
2468         gcc_version=$($_cc --version | head -n1)
2469         gcc_basever=$($_cc -dumpversion)
2470         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2471         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2472         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2473         if ! $_cc -dumpversion | grep -q '^2\.'; then
2474             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2475         fi
2476         _cflags_speed='-O3'
2477         _cflags_size='-Os'
2478     elif $_cc --version 2>/dev/null | grep -q Intel; then
2479         _type=icc
2480         _ident=$($_cc --version | head -n1)
2481         _depflags='-MMD'
2482         _cflags_speed='-O3'
2483         _cflags_size='-Os'
2484         _cflags_noopt='-O1'
2485     elif $_cc -v 2>&1 | grep -q xlc; then
2486         _type=xlc
2487         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2488         _cflags_speed='-O5'
2489         _cflags_size='-O5 -qcompact'
2490     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2491         _type=ccc
2492         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2493         _DEPFLAGS='-M'
2494         debuglevel=3
2495         _ldflags='-Wl,-z,now' # calls to libots crash without this
2496         _cflags_speed='-fast'
2497         _cflags_size='-O1'
2498     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2499         test -d "$sysroot" || die "No valid sysroot specified."
2500         _type=armcc
2501         _ident=$($_cc --vsn | head -n1)
2502         armcc_conf="$PWD/armcc.conf"
2503         $_cc --arm_linux_configure                 \
2504              --arm_linux_config_file="$armcc_conf" \
2505              --configure_sysroot="$sysroot"        \
2506              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2507              die "Error creating armcc configuration file."
2508         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2509         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2510         as_default="${cross_prefix}gcc"
2511         _depflags='-MMD'
2512         _cflags_speed='-O3'
2513         _cflags_size='-Os'
2514     elif $_cc -version 2>/dev/null | grep -q TMS470; then
2515         _type=tms470
2516         _ident=$($_cc -version | head -n1 | tr -s ' ')
2517         _flags='--gcc --abi=eabi -me'
2518         _cflags='-D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__='
2519         _cc_e='-ppl -fe=$@'
2520         _cc_o='-fe=$@'
2521         as_default="${cross_prefix}gcc"
2522         ld_default="${cross_prefix}gcc"
2523         _depflags='-ppa -ppd=$(@:.o=.d)'
2524         _cflags_speed='-O3 -mf=5'
2525         _cflags_size='-O3 -mf=2'
2526         _flags_filter=tms470_flags
2527     elif $_cc -v 2>&1 | grep -q clang; then
2528         _type=clang
2529         _ident=$($_cc --version | head -n1)
2530         _depflags='-MMD'
2531         _cflags_speed='-O3'
2532         _cflags_size='-Os'
2533     elif $_cc -V 2>&1 | grep -q Sun; then
2534         _type=suncc
2535         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2536         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2537         _DEPFLAGS='-xM1 -xc99'
2538         _ldflags='-std=c99'
2539         _cflags_speed='-O5'
2540         _cflags_size='-O5 -xspace'
2541         _flags_filter=suncc_flags
2542     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2543         _type=pathscale
2544         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2545         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2546         _cflags_speed='-O2'
2547         _cflags_size='-Os'
2548         _flags_filter='filter_out -Wdisabled-optimization'
2549     elif $_cc -v 2>&1 | grep -q Open64; then
2550         _type=open64
2551         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2552         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2553         _cflags_speed='-O2'
2554         _cflags_size='-Os'
2555         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2556     elif $_cc -V 2>&1 | grep -q Portland; then
2557         _type=pgi
2558         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2559         opt_common='-alias=ansi -Mlre -Mpre'
2560         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2561         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2562         _cflags_noopt="-O1"
2563         _flags_filter=pgi_flags
2564     fi
2565
2566     eval ${pfx}_type=\$_type
2567     eval ${pfx}_ident=\$_ident
2568 }
2569
2570 set_ccvars(){
2571     eval ${1}_C=\${_cc_c-\${${1}_C}}
2572     eval ${1}_E=\${_cc_e-\${${1}_E}}
2573     eval ${1}_O=\${_cc_o-\${${1}_O}}
2574
2575     if [ -n "$_depflags" ]; then
2576         eval ${1}_DEPFLAGS=\$_depflags
2577     else
2578         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2579         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2580         eval DEP${1}FLAGS=\$_flags
2581     fi
2582 }
2583
2584 probe_cc cc "$cc"
2585 cflags_filter=$_flags_filter
2586 cflags_speed=$_cflags_speed
2587 cflags_size=$_cflags_size
2588 cflags_noopt=$_cflags_noopt
2589 add_cflags $_flags $_cflags
2590 cc_ldflags=$_ldflags
2591 set_ccvars CC
2592
2593 probe_cc hostcc "$host_cc"
2594 host_cflags_filter=$_flags_filter
2595 add_host_cflags  $_flags $_cflags
2596 set_ccvars HOSTCC
2597
2598 test -n "$cc_type" && enable $cc_type ||
2599     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2600
2601 : ${as_default:=$cc}
2602 : ${dep_cc_default:=$cc}
2603 : ${ld_default:=$cc}
2604 : ${host_ld_default:=$host_cc}
2605 set_default ar as dep_cc ld host_ld
2606
2607 probe_cc as "$as"
2608 asflags_filter=$_flags_filter
2609 add_asflags $_flags $_cflags
2610 set_ccvars AS
2611
2612 probe_cc ld "$ld"
2613 ldflags_filter=$_flags_filter
2614 add_ldflags $_flags $_ldflags
2615 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2616 LD_O=${_ld_o-$LD_O}
2617 LD_LIB=${_ld_lib-$LD_LIB}
2618 LD_PATH=${_ld_path-$LD_PATH}
2619
2620 probe_cc hostld "$host_ld"
2621 host_ldflags_filter=$_flags_filter
2622 add_host_ldflags $_flags $_ldflags
2623 HOSTLD_O=${_ld_o-$HOSTLD_O}
2624
2625 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2626     probe_cc depcc "$dep_cc"
2627     CCDEP=${_DEPCMD:-$DEPCMD}
2628     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2629     DEPCCFLAGS=$_flags
2630 fi
2631
2632 add_cflags $extra_cflags
2633 add_cxxflags $extra_cxxflags
2634 add_asflags $extra_cflags
2635
2636 if test -n "$sysroot"; then
2637     case "$cc_type" in
2638         gcc|llvm_gcc|clang)
2639             add_cppflags --sysroot="$sysroot"
2640             add_ldflags --sysroot="$sysroot"
2641         ;;
2642         tms470)
2643             add_cppflags -I"$sysinclude"
2644             add_ldflags  --sysroot="$sysroot"
2645         ;;
2646     esac
2647 fi
2648
2649 if test "$cpu" = host; then
2650     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2651
2652     case "$cc_type" in
2653         gcc|llvm_gcc)
2654             check_native(){
2655                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2656                 sed -n "/cc1.*$1=/{
2657                             s/.*$1=\\([^ ]*\\).*/\\1/
2658                             p
2659                             q
2660                         }" $TMPE
2661             }
2662             cpu=$(check_native -march || check_native -mcpu)
2663         ;;
2664     esac
2665
2666     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2667 fi
2668
2669 # Deal with common $arch aliases
2670 case "$arch" in
2671     arm*|iPad*)
2672         arch="arm"
2673     ;;
2674     mips|mipsel|IP*)
2675         arch="mips"
2676     ;;
2677     mips64*)
2678         arch="mips"
2679         subarch="mips64"
2680     ;;
2681     parisc|hppa)
2682         arch="parisc"
2683     ;;
2684     parisc64|hppa64)
2685         arch="parisc"
2686         subarch="parisc64"
2687     ;;
2688     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2689         arch="ppc"
2690     ;;
2691     s390|s390x)
2692         arch="s390"
2693     ;;
2694     sh4|sh)
2695         arch="sh4"
2696     ;;
2697     sun4u|sparc64)
2698         arch="sparc"
2699         subarch="sparc64"
2700     ;;
2701     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2702         arch="x86"
2703     ;;
2704 esac
2705
2706 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2707 enable $arch
2708
2709 # Add processor-specific flags
2710 if test "$cpu" = generic; then
2711     : do nothing
2712 elif enabled ppc; then
2713
2714     case $(tolower $cpu) in
2715         601|ppc601|powerpc601)
2716             cpuflags="-mcpu=601"
2717             disable altivec
2718         ;;
2719         603*|ppc603*|powerpc603*)
2720             cpuflags="-mcpu=603"
2721             disable altivec
2722         ;;
2723         604*|ppc604*|powerpc604*)
2724             cpuflags="-mcpu=604"
2725             disable altivec
2726         ;;
2727         g3|75*|ppc75*|powerpc75*)
2728             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2729             disable altivec
2730         ;;
2731         g4|745*|ppc745*|powerpc745*)
2732             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2733         ;;
2734         74*|ppc74*|powerpc74*)
2735             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2736         ;;
2737         g5|970|ppc970|powerpc970)
2738             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2739         ;;
2740         power[3-7]*)
2741             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2742         ;;
2743         cell)
2744             cpuflags="-mcpu=cell"
2745             enable ldbrx
2746         ;;
2747         e500mc)
2748             cpuflags="-mcpu=e500mc"
2749             disable altivec
2750         ;;
2751         e500v2)
2752             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2753             disable altivec
2754         ;;
2755         e500)
2756             cpuflags="-mcpu=8540 -mhard-float"
2757             disable altivec
2758         ;;
2759     esac
2760
2761 elif enabled x86; then
2762
2763     case $cpu in
2764         i[345]86|pentium)
2765             cpuflags="-march=$cpu"
2766             disable mmx
2767         ;;
2768         # targets that do NOT support conditional mov (cmov)
2769         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2770             cpuflags="-march=$cpu"
2771             disable cmov
2772         ;;
2773         # targets that do support conditional mov (cmov)
2774         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2775             cpuflags="-march=$cpu"
2776             enable cmov
2777             enable fast_cmov
2778         ;;
2779         # targets that do support conditional mov but on which it's slow
2780         pentium4|pentium4m|prescott|nocona)
2781             cpuflags="-march=$cpu"
2782             enable cmov
2783             disable fast_cmov
2784         ;;
2785     esac
2786
2787 elif enabled sparc; then
2788
2789     case $cpu in
2790         niagara)
2791             cpuflags="-mcpu=$cpu"
2792             disable vis
2793         ;;
2794         sparc64)
2795             cpuflags="-mcpu=v9"
2796         ;;
2797     esac
2798
2799 elif enabled arm; then
2800
2801     case $cpu in
2802         armv*)
2803             cpuflags="-march=$cpu"
2804             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2805         ;;
2806         *)
2807             cpuflags="-mcpu=$cpu"
2808             case $cpu in
2809                 cortex-a*)                               subarch=armv7a  ;;
2810                 cortex-r*)                               subarch=armv7r  ;;
2811                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2812                 arm11*)                                  subarch=armv6   ;;
2813                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2814                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2815             esac
2816         ;;
2817     esac
2818
2819 elif enabled alpha; then
2820
2821     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2822
2823 elif enabled bfin; then
2824
2825     cpuflags="-mcpu=$cpu"
2826
2827 elif enabled mips; then
2828
2829     cpuflags="-march=$cpu"
2830
2831     case $cpu in
2832         24kc)
2833             disable mipsfpu
2834             disable mipsdspr1
2835             disable mipsdspr2
2836         ;;
2837         24kf*)
2838             disable mipsdspr1
2839             disable mipsdspr2
2840         ;;
2841         24kec|34kc|1004kc)
2842             disable mipsfpu
2843             disable mipsdspr2
2844         ;;
2845         24kef*|34kf*|1004kf*)
2846             disable mipsdspr2
2847         ;;
2848         74kc)
2849             disable mipsfpu
2850         ;;
2851     esac
2852
2853 elif enabled avr32; then
2854
2855     case $cpu in
2856         ap7[02]0[0-2])
2857             subarch="avr32_ap"
2858             cpuflags="-mpart=$cpu"
2859         ;;
2860         ap)
2861             subarch="avr32_ap"
2862             cpuflags="-march=$cpu"
2863         ;;
2864         uc3[ab]*)
2865             subarch="avr32_uc"
2866             cpuflags="-mcpu=$cpu"
2867         ;;
2868         uc)
2869             subarch="avr32_uc"
2870             cpuflags="-march=$cpu"
2871         ;;
2872     esac
2873
2874 fi
2875
2876 add_cflags $cpuflags
2877 add_asflags $cpuflags
2878
2879 # compiler sanity check
2880 check_exec <<EOF
2881 int main(void){ return 0; }
2882 EOF
2883 if test "$?" != 0; then
2884     echo "$cc is unable to create an executable file."
2885     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2886         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2887         echo "Only do this if you know what cross compiling means."
2888     fi
2889     die "C compiler test failed."
2890 fi
2891
2892 add_cppflags -D_ISOC99_SOURCE
2893 add_cxxflags -D__STDC_CONSTANT_MACROS
2894 check_cflags -std=c99
2895 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2896 #include <stdlib.h>
2897 EOF
2898 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2899 #include <stdlib.h>
2900 EOF
2901
2902 check_host_cflags -std=c99
2903 check_host_cflags -Wall
2904
2905 case "$arch" in
2906     alpha|ia64|mips|parisc|sparc)
2907         spic=$shared
2908     ;;
2909     x86)
2910         subarch="x86_32"
2911         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2912         if test "$subarch" = "x86_64"; then
2913             spic=$shared
2914         fi
2915     ;;
2916     ppc)
2917         check_cc <<EOF && subarch="ppc64"
2918         int test[(int)sizeof(char*) - 7];
2919 EOF
2920     ;;
2921 esac
2922
2923 enable $subarch
2924 enabled spic && enable pic
2925
2926 # OS specific
2927 case $target_os in
2928     haiku)
2929         prefix_default="/boot/common"
2930         network_extralibs="-lnetwork"
2931         host_libs=
2932         ;;
2933     sunos)
2934         FFSERVERLDFLAGS=""
2935         SHFLAGS='-shared -Wl,-h,$$(@F)'
2936         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2937         network_extralibs="-lsocket -lnsl"
2938         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2939         # When using suncc to build, the Solaris linker will mark
2940         # an executable with each instruction set encountered by
2941         # the Solaris assembler.  As our libraries contain their own
2942         # guards for processor-specific code, instead suppress
2943         # generation of the HWCAPS ELF section on Solaris x86 only.
2944         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2945         nm_opts='-P -g'
2946         ;;
2947     netbsd)
2948         disable symver
2949         oss_indev_extralibs="-lossaudio"
2950         oss_outdev_extralibs="-lossaudio"
2951         ;;
2952     openbsd|bitrig)
2953         # On OpenBSD 4.5. the compiler does not use PIC unless
2954         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2955         # however the generated executable will not do anything
2956         # (simply quits with exit-code 1, no crash, no output).
2957         # Thus explicitly enable PIC here.
2958         enable pic
2959         disable symver
2960         SHFLAGS='-shared'
2961         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2962         SLIB_INSTALL_LINKS=
2963         oss_indev_extralibs="-lossaudio"
2964         oss_outdev_extralibs="-lossaudio"
2965         ;;
2966     dragonfly)
2967         disable symver
2968         ;;
2969     freebsd)
2970         ;;
2971     bsd/os)
2972         add_extralibs -lpoll -lgnugetopt
2973         strip="strip -d"
2974         ;;
2975     darwin)
2976         gas="gas-preprocessor.pl $cc"
2977         enabled ppc && add_asflags -force_cpusubtype_ALL
2978         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2979         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2980         strip="${strip} -x"
2981         add_ldflags -Wl,-dynamic,-search_paths_first
2982         SLIBSUF=".dylib"
2983         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2984         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2985         FFSERVERLDFLAGS=-Wl,-bind_at_load
2986         objformat="macho"
2987         enabled x86_64 && objformat="macho64"
2988         enabled_any pic shared ||
2989             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2990         ;;
2991     mingw32*)
2992         if test $target_os = "mingw32ce"; then
2993             disable network
2994         else
2995             target_os=mingw32
2996         fi
2997         LIBTARGET=i386
2998         if enabled x86_64; then
2999             LIBTARGET="i386:x86-64"
3000         elif enabled arm; then
3001             LIBTARGET=arm-wince
3002         fi
3003         shlibdir_default="$bindir_default"
3004         SLIBPREF=""
3005         SLIBSUF=".dll"
3006         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3007         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3008         dlltool="${cross_prefix}dlltool"
3009         if check_cmd lib.exe -list; then
3010             SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3011             if enabled x86_64; then
3012                 LIBTARGET=x64
3013             fi
3014         elif check_cmd $dlltool --version; then
3015             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3016         fi
3017         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3018         SLIB_INSTALL_LINKS=
3019         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3020         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3021         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3022         objformat="win32"
3023         enable dos_paths
3024         check_cflags -fno-common
3025         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
3026                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3027                 die "ERROR: MinGW runtime version must be >= 3.15."
3028         add_cppflags -U__STRICT_ANSI__
3029         ;;
3030     cygwin*)
3031         target_os=cygwin
3032         shlibdir_default="$bindir_default"
3033         SLIBPREF="cyg"
3034         SLIBSUF=".dll"
3035         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3036         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3037         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3038         SLIB_INSTALL_LINKS=
3039         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3040         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3041         objformat="win32"
3042         enable dos_paths
3043         check_cflags -fno-common
3044         add_cppflags -U__STRICT_ANSI__
3045         ;;
3046     *-dos|freedos|opendos)
3047         network_extralibs="-lsocket"
3048         objformat="coff"
3049         enable dos_paths
3050         add_cppflags -U__STRICT_ANSI__
3051         ;;
3052     linux)
3053         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3054         enable dv1394
3055         ;;
3056     irix*)
3057         target_os=irix
3058         ranlib="echo ignoring ranlib"
3059         ;;
3060     os/2*)
3061         strip="lxlite -CS"
3062         ln_s="cp -f"
3063         objformat="aout"
3064         add_cppflags -D_GNU_SOURCE
3065         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3066         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3067         FFSERVERLDFLAGS=""
3068         LIBSUF="_s.a"
3069         SLIBPREF=""
3070         SLIBSUF=".dll"
3071         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3072         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3073         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3074           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3075           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3076           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3077           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3078           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3079         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3080           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3081         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3082         enable dos_paths
3083         enable_weak os2threads
3084         ;;
3085     gnu/kfreebsd)
3086         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
3087         ;;
3088     gnu)
3089         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3090         ;;
3091     qnx)
3092         add_cppflags -D_QNX_SOURCE
3093         network_extralibs="-lsocket"
3094         ;;
3095     symbian)
3096         SLIBSUF=".dll"
3097         enable dos_paths
3098         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3099         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3100         add_ldflags -Wl,--target1-abs,--no-undefined \
3101                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3102                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3103         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3104                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3105                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3106         ;;
3107     none)
3108         ;;
3109     *)
3110         die "Unknown OS '$target_os'."
3111         ;;
3112 esac
3113
3114 esc(){
3115     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3116 }
3117
3118 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3119
3120 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3121
3122 set_default $PATHS_LIST
3123
3124 # we need to build at least one lib type
3125 if ! enabled_any static shared; then
3126     cat <<EOF
3127 At least one library type must be built.
3128 Specify --enable-static to build the static libraries or --enable-shared to
3129 build the shared libraries as well. To only build the shared libraries specify
3130 --disable-static in addition to --enable-shared.
3131 EOF
3132     exit 1;
3133 fi
3134
3135 die_license_disabled() {
3136     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3137 }
3138
3139 die_license_disabled_gpl() {
3140     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3141 }
3142
3143 die_license_disabled gpl libcdio
3144 die_license_disabled gpl libutvideo
3145 die_license_disabled gpl libx264
3146 die_license_disabled gpl libxavs
3147 die_license_disabled gpl libxvid
3148 die_license_disabled gpl x11grab
3149
3150 die_license_disabled nonfree libaacplus
3151 die_license_disabled nonfree libfaac
3152 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3153 enabled gpl && die_license_disabled_gpl nonfree openssl
3154
3155 die_license_disabled version3 libopencore_amrnb
3156 die_license_disabled version3 libopencore_amrwb
3157 die_license_disabled version3 libvo_aacenc
3158 die_license_disabled version3 libvo_amrwbenc
3159
3160 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3161
3162 disabled optimizations || check_cflags -fomit-frame-pointer
3163
3164 enable_pic() {
3165     enable pic
3166     add_cppflags -DPIC
3167     add_cflags   -fPIC
3168     add_asflags  -fPIC
3169 }
3170
3171 enabled pic && enable_pic
3172
3173 check_cc <<EOF || die "Symbol mangling check failed."
3174 int ff_extern;
3175 EOF
3176 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3177 extern_prefix=${sym%%ff_extern*}
3178
3179 check_cc <<EOF && enable inline_asm
3180 void foo(void) { __asm__ volatile ("" ::); }
3181 EOF
3182
3183 _restrict=
3184 for restrict_keyword in restrict __restrict__ __restrict; do
3185     check_cc <<EOF && _restrict=$restrict_keyword && break
3186 void foo(char * $restrict_keyword p);
3187 EOF
3188 done
3189
3190 check_cc <<EOF && enable attribute_packed
3191 struct { int x; } __attribute__((packed)) x;
3192 EOF
3193
3194 check_cc <<EOF && enable attribute_may_alias
3195 union { int x; } __attribute__((may_alias)) x;
3196 EOF
3197
3198 check_cc <<EOF || die "endian test failed"
3199 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3200 EOF
3201 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3202
3203 if enabled alpha; then
3204
3205     check_cflags -mieee
3206
3207 elif enabled arm; then
3208
3209     enabled thumb && check_cflags -mthumb || check_cflags -marm
3210     nogas=die
3211
3212     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3213         enable vfp_args
3214     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3215         case "${cross_prefix:-$cc}" in
3216             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3217             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3218 __asm__ (".eabi_attribute 28, 1");
3219 int main(void) { return 0; }
3220 EOF
3221         esac
3222         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3223     fi
3224
3225     enabled armv5te && check_inline_asm armv5te '"qadd r0, r0, r0"'
3226     enabled armv6   && check_inline_asm armv6   '"sadd16 r0, r0, r0"'
3227     enabled armv6t2 && check_inline_asm armv6t2 '"movt r0, #0"'
3228     enabled armvfp  && check_inline_asm armvfp  '"fadds s0, s0, s0"'
3229     enabled neon    && check_inline_asm neon    '"vadd.i16 q0, q0, q0"'
3230     enabled vfpv3   && check_inline_asm vfpv3   '"vmov.f32 s0, #1.0"'
3231
3232     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3233     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3234
3235     enabled_all armv6t2 shared !pic && enable_pic
3236
3237 elif enabled mips; then
3238
3239     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3240     enabled mmi && check_inline_asm mmi '"lq $2, 0($2)"'
3241     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3242      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3243     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3244      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3245     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3246      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3247     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3248      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3249
3250 elif enabled ppc; then
3251
3252     enable local_aligned_8 local_aligned_16
3253
3254     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3255     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3256     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3257     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3258
3259     # AltiVec flags: The FSF version of GCC differs from the Apple version
3260     if enabled altivec; then
3261         nogas=warn
3262         check_cflags -maltivec -mabi=altivec &&
3263         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3264         check_cflags -faltivec
3265
3266         # check if our compiler supports Motorola AltiVec C API
3267         check_cc <<EOF || disable altivec
3268 $inc_altivec_h
3269 int main(void) {
3270     vector signed int v1 = (vector signed int) { 0 };
3271     vector signed int v2 = (vector signed int) { 1 };
3272     v1 = vec_add(v1, v2);
3273     return 0;
3274 }
3275 EOF
3276
3277         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3278     fi
3279
3280 elif enabled sparc; then
3281
3282     enabled vis &&
3283         check_inline_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3284         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3285
3286 elif enabled x86; then
3287
3288     check_code ld immintrin.h "__xgetbv(0)" "cc" && enable xgetbv
3289     check_code ld intrin.h "int info[4]; __cpuid(info, 0)" "cc" && enable cpuid
3290     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3291     check_code ld intrin.h "unsigned int x = __readeflags()" "cc" && enable rweflags
3292
3293     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3294
3295     enable local_aligned_8 local_aligned_16
3296
3297     # check whether EBP is available on x86
3298     # As 'i' is stored on the stack, this program will crash
3299     # if the base pointer is used to access it because the
3300     # base pointer is cleared in the inline assembly code.
3301     check_exec_crash <<EOF && enable ebp_available
3302     volatile int i=0;
3303     __asm__ volatile (
3304         "xorl %%ebp, %%ebp"
3305     ::: "%ebp");
3306     return i;
3307 EOF
3308
3309     # check whether EBX is available on x86
3310     check_inline_asm ebx_available '""::"b"(0)' &&
3311         check_inline_asm ebx_available '"":::"%ebx"'
3312
3313     # check whether xmm clobbers are supported
3314     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3315
3316     # check whether binutils is new enough to compile SSSE3/MMXEXT
3317     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3318     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3319
3320     if ! disabled_any asm mmx yasm; then
3321         if check_cmd $yasmexe --version; then
3322             enabled x86_64 && yasm_extra="-m amd64"
3323             yasm_debug="-g dwarf2"
3324         elif check_cmd nasm -v; then
3325             yasmexe=nasm
3326             yasm_debug="-g -F dwarf"
3327             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3328         fi
3329
3330         YASMFLAGS="-f $objformat $yasm_extra"
3331         enabled pic               && append YASMFLAGS "-DPIC"
3332         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3333         case "$objformat" in
3334             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3335         esac
3336
3337         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3338             die "yasm not found, use --disable-yasm for a crippled build"
3339         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3340         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3341         check_yasm "CPU amdnop" && enable cpunop
3342     fi
3343
3344     case "$cpu" in
3345         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3346             disable fast_clz
3347         ;;
3348     esac
3349
3350 fi
3351
3352 if enabled asm; then
3353     as=${gas:=$as}
3354     check_inline_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3355         $nogas "GNU assembler not found, install gas-preprocessor"
3356 fi
3357
3358 check_ldflags -Wl,--as-needed
3359
3360 if check_func dlopen; then
3361     ldl=
3362 elif check_func dlopen -ldl; then
3363     ldl=-ldl
3364 fi
3365
3366 if enabled network; then
3367     check_type "sys/types.h sys/socket.h" socklen_t
3368     check_type netdb.h "struct addrinfo"
3369     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3370     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3371     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3372     check_type netinet/in.h "struct sockaddr_in6"
3373     check_type poll.h "struct pollfd"
3374     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3375     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3376     check_type netinet/sctp.h "struct sctp_event_subscribe"
3377     check_func getaddrinfo $network_extralibs
3378     # Prefer arpa/inet.h over winsock2
3379     if check_header arpa/inet.h ; then
3380         check_func closesocket
3381     elif check_header winsock2.h ; then
3382         check_func_headers winsock2.h closesocket -lws2 &&
3383             network_extralibs="-lws2" ||
3384         { check_func_headers winsock2.h closesocket -lws2_32 &&
3385             network_extralibs="-lws2_32"; }
3386         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3387         check_type ws2tcpip.h socklen_t
3388         check_type ws2tcpip.h "struct addrinfo"
3389         check_type ws2tcpip.h "struct group_source_req"
3390         check_type ws2tcpip.h "struct ip_mreq_source"
3391         check_type ws2tcpip.h "struct ipv6_mreq"
3392         check_type winsock2.h "struct pollfd"
3393         check_type ws2tcpip.h "struct sockaddr_in6"
3394         check_type ws2tcpip.h "struct sockaddr_storage"
3395         check_struct winsock2.h "struct sockaddr" sa_len
3396     else
3397         disable network
3398     fi
3399 fi
3400
3401 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3402 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3403
3404 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3405 check_func  fcntl
3406 check_func  fork
3407 check_func  gethrtime
3408 check_func  getopt
3409 check_func  getrusage
3410 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3411 check_func  gettimeofday
3412 check_func  inet_aton $network_extralibs
3413 check_func  isatty
3414 check_func  localtime_r
3415 check_func  ${malloc_prefix}memalign            && enable memalign
3416 check_func  mkstemp
3417 check_func  mmap
3418 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3419 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3420 check_func  setrlimit
3421 check_func  snprintf
3422 check_func  strerror_r
3423 check_func  strptime
3424 check_func  sched_getaffinity
3425 check_func  sysconf
3426 check_func  sysctl
3427 check_func  usleep
3428 check_func_headers conio.h kbhit
3429 check_func_headers windows.h PeekNamedPipe
3430 check_func_headers io.h setmode
3431 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3432 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3433 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3434 check_func_headers windows.h GetProcessAffinityMask
3435 check_func_headers windows.h GetProcessTimes
3436 check_func_headers windows.h GetSystemTimeAsFileTime
3437 check_func_headers windows.h MapViewOfFile
3438 check_func_headers windows.h Sleep
3439 check_func_headers windows.h VirtualAlloc
3440 check_func_headers glob.h glob
3441
3442 # Check for MSVCRT; it has a broken strtod() that can't parse some input.
3443 # Use old dos symbol to detect it. If we are on mingw, it already provides
3444 # its own replacement and we don't need to redo that.
3445 if check_func _get_doserrno; then
3446     if test $target_os != mingw32; then
3447         enable broken_strtod
3448     fi
3449 fi
3450
3451 check_header dlfcn.h
3452 check_header dxva.h
3453 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3454 check_header libcrystalhd/libcrystalhd_if.h
3455 check_header malloc.h
3456 check_header poll.h
3457 check_header sys/mman.h
3458 check_header sys/param.h
3459 check_header sys/resource.h
3460 check_header sys/select.h
3461 check_header sys/time.h
3462 check_header termios.h
3463 check_header unistd.h
3464 check_header vdpau/vdpau.h
3465 check_header vdpau/vdpau_x11.h
3466 check_header windows.h
3467 check_header X11/extensions/XvMClib.h
3468 check_header asm/types.h
3469
3470 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3471 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3472
3473 # check for VDA header
3474 if ! disabled vda; then
3475     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3476         enable vda
3477         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3478     fi
3479 fi
3480
3481 if ! disabled w32threads && ! enabled pthreads; then
3482     check_func _beginthreadex && enable w32threads
3483 fi
3484
3485 # check for some common methods of building with pthread support
3486 # do this before the optional library checks as some of them require pthreads
3487 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3488     enable pthreads
3489     if check_func pthread_create; then
3490         :
3491     elif check_func pthread_create -pthread; then
3492         add_cflags -pthread
3493         add_extralibs -pthread
3494     elif check_func pthread_create -pthreads; then
3495         add_cflags -pthreads
3496         add_extralibs -pthreads
3497     elif check_func pthread_create -lpthreadGC2; then
3498         add_extralibs -lpthreadGC2
3499     elif ! check_lib pthread.h pthread_create -lpthread; then
3500         disable pthreads
3501     fi
3502 fi
3503
3504 for thread in $THREADS_LIST; do
3505     if enabled $thread; then
3506         test -n "$thread_type" &&
3507             die "ERROR: Only one thread type must be selected." ||
3508             thread_type="$thread"
3509     fi
3510 done
3511
3512 if enabled pthreads; then
3513   check_func pthread_cancel
3514 fi
3515
3516 check_lib math.h sin -lm && LIBM="-lm"
3517 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3518 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3519
3520 check_mathfunc cbrtf
3521 check_mathfunc exp2
3522 check_mathfunc exp2f
3523 check_mathfunc isinf
3524 check_mathfunc isnan
3525 check_mathfunc llrint
3526 check_mathfunc llrintf
3527 check_mathfunc log2
3528 check_mathfunc log2f
3529 check_mathfunc lrint
3530 check_mathfunc lrintf
3531 check_mathfunc rint
3532 check_mathfunc round
3533 check_mathfunc roundf
3534 check_mathfunc trunc
3535 check_mathfunc truncf
3536
3537 # these are off by default, so fail if requested and not available
3538 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3539 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3540 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3541 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3542 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3543 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3544 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3545 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3546 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3547                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3548                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3549 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3550 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3551 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3552 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
3553 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3554 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3555 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3556 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3557 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3558 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3559 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3560 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3561 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3562 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3563 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3564 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3565 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3566 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3567 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3568 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3569 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3570     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3571     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3572 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3573 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3574                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3575                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3576 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3577 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3578 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3579 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3580 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3581 enabled libvpx     && {
3582     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3583                                 die "ERROR: libvpx decoder must be installed and version must be >=0.9.1"; }
3584     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3585                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3586 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3587                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3588                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3589 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3590 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3591 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3592                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3593                         die "ERROR: openal not found"; } &&
3594                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3595                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3596 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3597                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3598                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3599                         die "ERROR: openssl not found"; }
3600
3601 if enabled gnutls; then
3602     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3603     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3604 fi
3605
3606 # libdc1394 check
3607 if enabled libdc1394; then
3608     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3609         enable libdc1394_2; } ||
3610     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3611         enable libdc1394_1; } ||
3612     die "ERROR: No version of libdc1394 found "
3613 fi
3614
3615 SDL_CONFIG="${cross_prefix}sdl-config"
3616 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3617     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3618     enable sdl &&
3619     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3620 else
3621   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3622     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3623     sdl_libs=$("${SDL_CONFIG}" --libs)
3624     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3625     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3626     enable sdl &&
3627     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3628   fi
3629 fi
3630 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3631
3632 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3633 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3634 perl --version > /dev/null 2>&1 && enable perl || disable perl
3635 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3636
3637 check_header linux/fb.h
3638 check_header linux/videodev.h
3639 check_header linux/videodev2.h
3640 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3641
3642 check_header sys/videoio.h
3643
3644 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3645 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3646 # w32api 3.12 had it defined wrong
3647 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3648
3649 check_type "dshow.h" IBaseFilter
3650
3651 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3652 { check_header dev/bktr/ioctl_meteor.h &&
3653   check_header dev/bktr/ioctl_bt848.h; } ||
3654 { check_header machine/ioctl_meteor.h &&
3655   check_header machine/ioctl_bt848.h; } ||
3656 { check_header dev/video/meteor/ioctl_meteor.h &&
3657   check_header dev/video/bktr/ioctl_bt848.h; } ||
3658 check_header dev/ic/bt8xx.h
3659
3660 check_header sndio.h
3661 if check_struct sys/soundcard.h audio_buf_info bytes; then
3662     enable_safe sys/soundcard.h
3663 else
3664     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3665     #include <sys/soundcard.h>
3666     audio_buf_info abc;
3667 EOF
3668 fi
3669 check_header soundcard.h
3670
3671 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3672
3673 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3674     check_func jack_port_get_latency_range -ljack
3675
3676 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3677
3678 enabled libcdio &&
3679     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3680
3681 enabled x11grab                                           &&
3682 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3683 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3684 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3685
3686 if ! disabled vaapi; then
3687     check_lib va/va.h vaInitialize -lva && {
3688         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3689         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3690     } || disable vaapi
3691 fi
3692
3693 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3694 check_cpp_condition \
3695     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3696     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3697       disable vdpau; }
3698 fi
3699
3700 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3701 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3702 test -n "$valgrind" && target_exec="$valgrind --error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3703
3704 # add some useful compiler flags if supported
3705 check_cflags -Wdeclaration-after-statement
3706 check_cflags -Wall
3707 check_cflags -Wno-parentheses
3708 check_cflags -Wno-switch
3709 check_cflags -Wno-format-zero-length
3710 check_cflags -Wdisabled-optimization
3711 check_cflags -Wpointer-arith
3712 check_cflags -Wredundant-decls
3713 check_cflags -Wno-pointer-sign
3714 check_cflags -Wwrite-strings
3715 check_cflags -Wtype-limits
3716 check_cflags -Wundef
3717 check_cflags -Wmissing-prototypes
3718 check_cflags -Wno-pointer-to-int-cast
3719 check_cflags -Wstrict-prototypes
3720 enabled extra_warnings && check_cflags -Winline
3721
3722 # add some linker flags
3723 check_ldflags -Wl,--warn-common
3724 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3725 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3726
3727 enabled xmm_clobber_test &&
3728     check_ldflags -Wl,--wrap,avcodec_open2              \
3729                   -Wl,--wrap,avcodec_decode_audio4      \
3730                   -Wl,--wrap,avcodec_decode_video2      \
3731                   -Wl,--wrap,avcodec_decode_subtitle2   \
3732                   -Wl,--wrap,avcodec_encode_audio2      \
3733                   -Wl,--wrap,avcodec_encode_video       \
3734                   -Wl,--wrap,avcodec_encode_subtitle    \
3735                   -Wl,--wrap,sws_scale ||
3736     disable xmm_clobber_test
3737
3738 echo "X{};" > $TMPV
3739 if test_ldflags -Wl,--version-script,$TMPV; then
3740     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3741     check_cc <<EOF && enable symver_asm_label
3742 void ff_foo(void) __asm__ ("av_foo@VERSION");
3743 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3744 EOF
3745     check_cc <<EOF && enable symver_gnu_asm
3746 __asm__(".symver ff_foo,av_foo@VERSION");
3747 void ff_foo(void) {}
3748 EOF
3749 fi
3750
3751 if [ -n "$optflags" ]; then
3752     add_cflags $optflags
3753 elif enabled small; then
3754     add_cflags $cflags_size
3755 elif enabled optimizations; then
3756     add_cflags $cflags_speed
3757 else
3758     add_cflags $cflags_noopt
3759 fi
3760 check_cflags -fno-math-errno
3761 check_cflags -fno-signed-zeros
3762 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3763 int x;
3764 EOF
3765
3766
3767 if enabled icc; then
3768     # Just warnings, no remarks
3769     check_cflags -w1
3770     # -wd: Disable following warnings
3771     # 144, 167, 556: -Wno-pointer-sign
3772     # 1292: attribute "foo" ignored
3773     # 1419: external declaration in primary source file
3774     # 10006: ignoring unknown option -fno-signed-zeros
3775     # 10148: ignoring unknown option -Wno-parentheses
3776     # 10156: ignoring option '-W'; no argument required
3777     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3778     # 11030: Warning unknown option --as-needed
3779     # 10156: ignoring option '-export'; no argument required
3780     check_ldflags -wd10156,11030
3781     # Allow to compile with optimizations
3782     check_ldflags -march=$cpu
3783     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3784     enable ebp_available
3785     if enabled x86_32; then
3786         icc_version=$($cc -dumpversion)
3787         test ${icc_version%%.*} -ge 11 &&
3788             check_cflags -falign-stack=maintain-16-byte ||
3789             disable aligned_stack
3790     fi
3791 elif enabled ccc; then
3792     # disable some annoying warnings
3793     add_cflags -msg_disable cvtu32to64
3794     add_cflags -msg_disable embedcomment
3795     add_cflags -msg_disable needconstext
3796     add_cflags -msg_disable nomainieee
3797     add_cflags -msg_disable ptrmismatch1
3798     add_cflags -msg_disable unreachcode
3799 elif enabled gcc; then
3800     check_cflags -fno-tree-vectorize
3801     check_cflags -Werror=implicit-function-declaration
3802     check_cflags -Werror=missing-prototypes
3803 elif enabled llvm_gcc; then
3804     check_cflags -mllvm -stack-alignment=16
3805 elif enabled clang; then
3806     check_cflags -mllvm -stack-alignment=16
3807     check_cflags -Qunused-arguments
3808 elif enabled armcc; then
3809     # 2523: use of inline assembler is deprecated
3810     add_cflags -W${armcc_opt},--diag_suppress=2523
3811     add_cflags -W${armcc_opt},--diag_suppress=1207
3812     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3813     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3814     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3815     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3816 elif enabled tms470; then
3817     add_cflags -pds=824 -pds=837
3818 elif enabled pathscale; then
3819     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3820 fi
3821
3822 # If a missing snprintf/broken strtod is detected, force-include headers
3823 # that override prototypes and define it to a prefixed one implemented in
3824 # libavutil. We do this at the end since -I flags aren't set in configure,
3825 # and any additional check_cflags() beyond here will thus fail (because
3826 # it can't find these files, because the -I$(srcdir) wasn't set).
3827 enabled snprintf || force_include compat/snprintf.h
3828 enabled broken_strtod && force_include compat/strtod.h
3829
3830 enabled_any $THREADS_LIST      && enable threads
3831
3832 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3833
3834 check_deps $CONFIG_LIST       \
3835            $CONFIG_EXTRA      \
3836            $HAVE_LIST         \
3837            $ALL_COMPONENTS    \
3838            $ALL_TESTS         \
3839
3840
3841 if test $target_os = "haiku"; then
3842     disable memalign
3843     disable posix_memalign
3844 fi
3845
3846 ! enabled_any memalign posix_memalign aligned_malloc &&
3847     enabled_any $need_memalign && enable memalign_hack
3848
3849 # add_dep lib dep
3850 # -> enable ${lib}_deps_${dep}
3851 # -> add $dep to ${lib}_deps only once
3852 add_dep() {
3853     lib=$1
3854     dep=$2
3855     enabled "${lib}_deps_${dep}" && return 0
3856     enable  "${lib}_deps_${dep}"
3857     prepend "${lib}_deps" $dep
3858 }
3859
3860 # merge deps lib components
3861 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3862 merge_deps() {
3863     lib=$1
3864     shift
3865     for comp in $*; do
3866         enabled $comp || continue
3867         eval "dep=\"\$${comp}_deps\""
3868         for d in $dep; do
3869             add_dep $lib $d
3870         done
3871     done
3872 }
3873
3874 merge_deps libavfilter $FILTER_LIST
3875
3876 echo "install prefix            $prefix"
3877 echo "source path               $source_path"
3878 echo "C compiler                $cc"
3879 echo "ARCH                      $arch ($cpu)"
3880 if test "$build_suffix" != ""; then
3881     echo "build suffix              $build_suffix"
3882 fi
3883 if test "$progs_suffix" != ""; then
3884     echo "progs suffix              $progs_suffix"
3885 fi
3886 if test "$extra_version" != ""; then
3887     echo "version string suffix     $extra_version"
3888 fi
3889 echo "big-endian                ${bigendian-no}"
3890 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3891 if enabled x86; then
3892     echo "${yasmexe}                      ${yasm-no}"
3893     echo "MMX enabled               ${mmx-no}"
3894     echo "MMXEXT enabled            ${mmxext-no}"
3895     echo "3DNow! enabled            ${amd3dnow-no}"
3896     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3897     echo "SSE enabled               ${sse-no}"
3898     echo "SSSE3 enabled             ${ssse3-no}"
3899     echo "AVX enabled               ${avx-no}"
3900     echo "FMA4 enabled              ${fma4-no}"
3901     echo "CMOV enabled              ${cmov-no}"
3902     echo "CMOV is fast              ${fast_cmov-no}"
3903     echo "EBX available             ${ebx_available-no}"
3904     echo "EBP available             ${ebp_available-no}"
3905 fi
3906 if enabled arm; then
3907     echo "ARMv5TE enabled           ${armv5te-no}"
3908     echo "ARMv6 enabled             ${armv6-no}"
3909     echo "ARMv6T2 enabled           ${armv6t2-no}"
3910     echo "ARM VFP enabled           ${armvfp-no}"
3911     echo "NEON enabled              ${neon-no}"
3912 fi
3913 if enabled mips; then
3914     echo "MMI enabled               ${mmi-no}"
3915     echo "MIPS FPU enabled          ${mipsfpu-no}"
3916     echo "MIPS32R2 enabled          ${mips32r2-no}"
3917     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3918     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3919 fi
3920 if enabled ppc; then
3921     echo "AltiVec enabled           ${altivec-no}"
3922     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3923     echo "dcbzl available           ${dcbzl-no}"
3924 fi
3925 if enabled sparc; then
3926     echo "VIS enabled               ${vis-no}"
3927 fi
3928 echo "debug symbols             ${debug-no}"
3929 echo "strip symbols             ${stripping-no}"
3930 echo "optimize for size         ${small-no}"
3931 echo "optimizations             ${optimizations-no}"
3932 echo "static                    ${static-no}"
3933 echo "shared                    ${shared-no}"
3934 echo "postprocessing support    ${postproc-no}"
3935 echo "new filter support        ${avfilter-no}"
3936 echo "network support           ${network-no}"
3937 echo "threading support         ${thread_type-no}"
3938 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3939 echo "SDL support               ${sdl-no}"
3940 echo "libdxva2 enabled          ${dxva2-no}"
3941 echo "libva enabled             ${vaapi-no}"
3942 echo "libvdpau enabled          ${vdpau-no}"
3943 echo "AVISynth enabled          ${avisynth-no}"
3944 echo "frei0r enabled            ${frei0r-no}"
3945 echo "gnutls enabled            ${gnutls-no}"
3946 echo "libaacplus enabled        ${libaacplus-no}"
3947 echo "libass enabled            ${libass-no}"
3948 echo "libcaca enabled           ${libcaca-no}"
3949 echo "libcdio support           ${libcdio-no}"
3950 echo "libcelt enabled           ${libcelt-no}"
3951 echo "libdc1394 support         ${libdc1394-no}"
3952 echo "libfaac enabled           ${libfaac-no}"
3953 echo "libfdk-aac enabled        ${libfdk_aac-no}"
3954 echo "libgsm enabled            ${libgsm-no}"
3955 echo "libiec61883 support       ${libiec61883-no}"
3956 echo "libilbc enabled           ${libilbc-no}"
3957 echo "libmodplug enabled        ${libmodplug-no}"
3958 echo "libmp3lame enabled        ${libmp3lame-no}"
3959 echo "libnut enabled            ${libnut-no}"
3960 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3961 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3962 echo "libopencv support         ${libopencv-no}"
3963 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3964 echo "libopus enabled           ${libopus-no}"
3965 echo "libpulse enabled          ${libpulse-no}"
3966 echo "librtmp enabled           ${librtmp-no}"
3967 echo "libschroedinger enabled   ${libschroedinger-no}"
3968 echo "libspeex enabled          ${libspeex-no}"
3969 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3970 echo "libtheora enabled         ${libtheora-no}"
3971 echo "libtwolame enabled        ${libtwolame-no}"
3972 echo "libutvideo enabled        ${libutvideo-no}"
3973 echo "libv4l2 enabled           ${libv4l2-no}"
3974 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3975 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3976 echo "libvorbis enabled         ${libvorbis-no}"
3977 echo "libvpx enabled            ${libvpx-no}"
3978 echo "libx264 enabled           ${libx264-no}"
3979 echo "libxavs enabled           ${libxavs-no}"
3980 echo "libxvid enabled           ${libxvid-no}"
3981 echo "openal enabled            ${openal-no}"
3982 echo "openssl enabled           ${openssl-no}"
3983 echo "zlib enabled              ${zlib-no}"
3984 echo "bzlib enabled             ${bzlib-no}"
3985 echo "texi2html enabled         ${texi2html-no}"
3986 echo "perl enabled              ${perl-no}"
3987 echo "pod2man enabled           ${pod2man-no}"
3988 echo "makeinfo enabled          ${makeinfo-no}"
3989 test -n "$random_seed" &&
3990     echo "random seed               ${random_seed}"
3991 echo
3992
3993 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3994     echo "Enabled ${type}s:"
3995     eval list=\$$(toupper $type)_LIST
3996     print_enabled '_*' $list | sort | pr -r -3 -t
3997     echo
3998 done
3999
4000 license="LGPL version 2.1 or later"
4001 if enabled nonfree; then
4002     license="nonfree and unredistributable"
4003 elif enabled gplv3; then
4004     license="GPL version 3 or later"
4005 elif enabled lgplv3; then
4006     license="LGPL version 3 or later"
4007 elif enabled gpl; then
4008     license="GPL version 2 or later"
4009 fi
4010
4011 echo "License: $license"
4012
4013 echo "Creating config.mak and config.h..."
4014
4015 test -e Makefile || $ln_s "$source_path/Makefile" .
4016
4017 enabled stripping || strip="echo skipping strip"
4018
4019 config_files="$TMPH config.mak"
4020
4021 cat > config.mak <<EOF
4022 # Automatically generated by configure - do not modify!
4023 ifndef FFMPEG_CONFIG_MAK
4024 FFMPEG_CONFIG_MAK=1
4025 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4026 prefix=$prefix
4027 LIBDIR=\$(DESTDIR)$libdir
4028 SHLIBDIR=\$(DESTDIR)$shlibdir
4029 INCDIR=\$(DESTDIR)$incdir
4030 BINDIR=\$(DESTDIR)$bindir
4031 DATADIR=\$(DESTDIR)$datadir
4032 MANDIR=\$(DESTDIR)$mandir
4033 SRC_PATH=$source_path
4034 ifndef MAIN_MAKEFILE
4035 SRC_PATH:=\$(SRC_PATH:.%=..%)
4036 endif
4037 CC_IDENT=$cc_ident
4038 ARCH=$arch
4039 CC=$cc
4040 CXX=$cxx
4041 AS=$as
4042 LD=$ld
4043 DEPCC=$dep_cc
4044 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4045 DEPAS=$as
4046 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4047 YASM=$yasmexe
4048 DEPYASM=$yasmexe
4049 AR=$ar
4050 RANLIB=$ranlib
4051 CP=cp -p
4052 LN_S=$ln_s
4053 STRIP=$strip
4054 CPPFLAGS=$CPPFLAGS
4055 CFLAGS=$CFLAGS
4056 CXXFLAGS=$CXXFLAGS
4057 ASFLAGS=$ASFLAGS
4058 AS_C=$AS_C
4059 AS_O=$AS_O
4060 CC_C=$CC_C
4061 CC_O=$CC_O
4062 CXX_C=$CXX_C
4063 CXX_O=$CXX_O
4064 LD_O=$LD_O
4065 LD_LIB=$LD_LIB
4066 LD_PATH=$LD_PATH
4067 DLLTOOL=$dlltool
4068 LDFLAGS=$LDFLAGS
4069 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4070 SHFLAGS=$SHFLAGS
4071 YASMFLAGS=$YASMFLAGS
4072 BUILDSUF=$build_suffix
4073 PROGSSUF=$progs_suffix
4074 FULLNAME=$FULLNAME
4075 LIBPREF=$LIBPREF
4076 LIBSUF=$LIBSUF
4077 LIBNAME=$LIBNAME
4078 SLIBPREF=$SLIBPREF
4079 SLIBSUF=$SLIBSUF
4080 EXESUF=$EXESUF
4081 EXTRA_VERSION=$extra_version
4082 CCDEP=$CCDEP
4083 CXXDEP=$CXXDEP
4084 CCDEP_FLAGS=$CCDEP_FLAGS
4085 ASDEP=$ASDEP
4086 ASDEP_FLAGS=$ASDEP_FLAGS
4087 CC_DEPFLAGS=$CC_DEPFLAGS
4088 AS_DEPFLAGS=$AS_DEPFLAGS
4089 HOSTCC=$host_cc
4090 HOSTLD=$host_ld
4091 HOSTCFLAGS=$host_cflags
4092 HOSTEXESUF=$HOSTEXESUF
4093 HOSTLDFLAGS=$host_ldflags
4094 HOSTLIBS=$host_libs
4095 DEPHOSTCC=$host_cc
4096 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4097 HOSTCCDEP=$HOSTCCDEP
4098 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4099 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4100 HOSTCC_C=$HOSTCC_C
4101 HOSTCC_O=$HOSTCC_O
4102 HOSTLD_O=$HOSTLD_O
4103 TARGET_EXEC=$target_exec
4104 TARGET_PATH=$target_path
4105 LIBS-ffplay=$sdl_libs
4106 CFLAGS-ffplay=$sdl_cflags
4107 ZLIB=$($ldflags_filter -lz)
4108 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4109 EXTRALIBS=$extralibs
4110 INSTALL=$install
4111 LIBTARGET=${LIBTARGET}
4112 SLIBNAME=${SLIBNAME}
4113 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4114 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4115 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4116 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4117 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4118 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4119 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4120 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4121 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4122 NOREDZONE_FLAGS=$noredzone_flags
4123 EOF
4124
4125 get_version(){
4126     lcname=$1
4127     name=$(toupper $lcname)
4128     file=$source_path/$lcname/version.h
4129     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4130     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4131     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4132     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4133 }
4134
4135 get_version_old(){
4136     name=$1
4137     file=$source_path/$2
4138 # This condition will be removed when we stop supporting old libpostproc versions
4139 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
4140     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4141     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4142 fi
4143     lcname=$(tolower $name)
4144     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4145     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4146 }
4147
4148 get_version_old LIBPOSTPROC libpostproc/postprocess.h
4149 get_version_old LIBSWRESAMPLE libswresample/swresample.h
4150
4151 get_version libavcodec
4152 get_version libavdevice
4153 get_version libavfilter
4154 get_version libavformat
4155 get_version libavresample
4156 get_version libavutil
4157 get_version libswscale
4158
4159 cat > $TMPH <<EOF
4160 /* Automatically generated by configure - do not modify! */
4161 #ifndef FFMPEG_CONFIG_H
4162 #define FFMPEG_CONFIG_H
4163 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4164 #define FFMPEG_LICENSE "$(c_escape $license)"
4165 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4166 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4167 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4168 #define av_restrict $_restrict
4169 #define EXTERN_PREFIX "${extern_prefix}"
4170 #define EXTERN_ASM ${extern_prefix}
4171 #define SLIBSUF "$SLIBSUF"
4172 #define HAVE_MMX2 HAVE_MMXEXT
4173 EOF
4174
4175 test -n "$assert_level" &&
4176     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4177
4178 test -n "$malloc_prefix" &&
4179     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4180
4181 if enabled yasm; then
4182     append config_files $TMPASM
4183     printf '' >$TMPASM
4184 fi
4185
4186 print_config ARCH_   "$config_files" $ARCH_LIST
4187 print_config HAVE_   "$config_files" $HAVE_LIST
4188 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4189                                      $CONFIG_EXTRA      \
4190                                      $ALL_COMPONENTS    \
4191
4192 cat >>config.mak <<EOF
4193 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
4194 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
4195 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
4196 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
4197 EOF
4198
4199 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4200 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4201
4202 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4203 cp_if_changed $TMPH config.h
4204 touch .config
4205
4206 enabled yasm && cp_if_changed $TMPASM config.asm
4207
4208 cat > $TMPH <<EOF
4209 /* Generated by ffconf */
4210 #ifndef AVUTIL_AVCONFIG_H
4211 #define AVUTIL_AVCONFIG_H
4212 EOF
4213
4214 test "$postproc_version" != current && cat >> $TMPH <<EOF
4215 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
4216 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
4217 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
4218 EOF
4219
4220 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4221
4222 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4223
4224 cp_if_changed $TMPH libavutil/avconfig.h
4225
4226 test -n "$WARNINGS" && printf "\n$WARNINGS"
4227
4228 # build pkg-config files
4229
4230 pkgconfig_generate(){
4231 name=$1
4232 shortname=${name#lib}${build_suffix}
4233 comment=$2
4234 version=$3
4235 libs=$4
4236 requires=$5
4237 enabled ${name#lib} || return 0
4238 mkdir -p $name
4239 cat <<EOF > $name/$name.pc
4240 prefix=$prefix
4241 exec_prefix=\${prefix}
4242 libdir=$libdir
4243 includedir=$incdir
4244
4245 Name: $name
4246 Description: $comment
4247 Version: $version
4248 Requires: $(enabled shared || echo $requires)
4249 Requires.private: $(enabled shared && echo $requires)
4250 Conflicts:
4251 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4252 Libs.private: $(enabled shared && echo $libs)
4253 Cflags: -I\${includedir}
4254 EOF
4255
4256 mkdir -p doc/examples/pc-uninstalled
4257 includedir=${source_path}
4258 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4259 cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4260 prefix=
4261 exec_prefix=
4262 libdir=\${pcfiledir}/../../../$name
4263 includedir=${includedir}
4264
4265 Name: $name
4266 Description: $comment
4267 Version: $version
4268 Requires: $requires
4269 Conflicts:
4270 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4271 Cflags: -I\${includedir}
4272 EOF
4273 }
4274
4275 libavfilter_pc_deps=""
4276 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4277 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4278 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4279 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4280 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4281 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4282
4283 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4284 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4285
4286 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4287 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4288 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4289 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4290 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4291 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4292 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
4293 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4294 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"